1. Chemistry

    Hoffmans apparatus find out the energy available per mole of water if it is split into h2 and o2 Data 1 mol of gas at NTP is 24.5l 31.2ml of _______ 62.4ml of _______ it looks like this question comes from a lab experiment. You have not provided all the

    asked by San on March 7, 2007
  2. chemistry

    A glass apparatus contains 26.223 g of water when filled at 25 °C. At this temperature, water has a density of 0.99704 g/mL. What is the volume of this apparatus?

    asked by ellen on September 12, 2011
  3. CHEMISTRY

    A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50 degrees celsius. The bomb is constructed of 285.0 g of nickel metal having a specific heat capacity of Cp = 0.826 J/ g degrees C.

    asked by Jake on September 30, 2007
  4. AP Chemistry

    A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50 degrees celsius. The bomb is constructed of 285.0 g of nickel metal having a specific heat capacity of Cp = 0.826 J/ g degrees C.

    asked by Kate on September 30, 2007
  5. AP CHEMISTRY

    A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50 degrees celsius. The bomb is constructed of 285.0 g of nickel metal having a specific heat capacity of Cp = 0.826 J/ g degrees C.

    asked by Kate on September 30, 2007
  6. Chemistry

    A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50 degrees celsius. The bomb is constructed of 285.0 g of nickel metal having a specific heat capacity of Cp = 0.826 J/ g degrees C.

    asked by Kate on September 30, 2007
  7. Chemistry

    A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50 degrees celsius. The bomb is constructed of 285.0 g of nickel metal having a specific heat capacity of Cp = 0.826 J/ g degrees C.

    asked by Kate on September 30, 2007
  8. Chemistry-Dr.Bob, I need you!!!!

    You can mix 100.mL of 1.0 M HCl with 100 mL of 1.0 NaOH, both at 25 degree Celcius. The temperature of your calorimeter rises by 5.98 degree C, and its heat capacity is 100 J/degre C. How much energy is released per mol of H2O formed? My answer: 6x10^6 J

    asked by Sanaya on January 8, 2016
  9. CHEMISTRY

    Please explain the answer. Which statement about this reaction is correct? 2Fe(s)+3CO2(g)--->Fe2O3(s)+3CO(g) delta H = 26.6 kJ A. 26.6 kJ of energy are released for every mole of Fe reacted B. 26.6 kJ of energy are absorbed for every mole of Fe reacted C.

    asked by Anonymous on November 11, 2013
  10. Chemistry

    Please explain the answer. 1. Which statement about this reaction is correct? 2Fe(s)+3CO2(g)--->Fe2O3(s)+3CO(g) delta H = 26.6 kJ A. 26.6 kJ of energy are released for every mole of Fe reacted B. 26.6 kJ of energy are absorbed for every mole of Fe reacted

    asked by Anonymous on November 11, 2013
  11. chemistry

    If all of the chemical potential energy stored in a 100 Calorie snack pack was converted to thermal energy and subsequently absorbed by water, what would be the final temperature of the water? Assume you have a 1.5 mole sample of water initially at 25

    asked by Kris on December 14, 2009
  12. chemistry

    For a given reaction, the rate constant doubles when the temperature is increasd from 27C to 49C What ite activation energy? Explain. a).347 KJ/mole b)25.5 KJ/mole c)31.5 KJ/mole d)52.7 KJ/mole

    asked by reginajones on February 16, 2011
  13. chemistry

    find the temperature increase in C expected for 1.00 L of water when it absorbs all of the energy from the combustion of 1.00 g of acetylene, C2H2(g). (Every mole of acetylene releases 1300KJ of energy when combusted)

    asked by Ade on November 2, 2014
  14. Physics

    A 100 g mass is attached and wrapped around an apparatus at a constant radius of 10 cm. The hanging mass is dropped and obtains a speed of 0.2 m/s after 1 m. Using energy considerations, what is the moment of inertia of the apparatus?

    asked by Isabelle on April 9, 2014
  15. chem

    In a vehicle, H2 could be used in a fuel cell to generate energy. Hydrogen is not an energy source, but a means of transporting energy because the extraction of H2 from the logical source, H2O, takes as much energy as is returned when the gas is used. 2

    asked by Andrew on November 2, 2010
  16. to bobpursley

    An emergency breathing apparatus often placed in mines works via the following chemical reaction: 4KO2(s) + 2CO2(g) to make 2K2CO3(s) + O2(g) If the oxygen supply becomes limited or if the air becomes poisoned, a worker can use the apparatus to breath

    asked by Jenn on March 1, 2007
  17. Jenish

    Suppose you want to run some apparatus that is 95 m from an electric outlet. Each of the wires connecting your apparatus to the 120 v source has a resistance per unit length of .0065 ohms/m. If your apparatus draws 3.0 A what will be the voltage drop

    asked by Physics on February 16, 2008
  18. Thermodynamics

    The initial state consists of a closed system containing one mole of super-heated liquid water at 115°C and 1 atmosphere pressure. The immediate surroundings are also at 115°C and 1 atmosphere pressure. The change in state is described as this one mole

    asked by Becca on February 23, 2013
  19. Chemistry

    1.) The average velocity of Cl(2) molecules is 2.50 x 10^3 m/sec at a temp of 25 C therefore the average velocity of helium atoms is ?? [ i got the answer 5.94 x 10^2 m/Sec is that right] 2.) A gas is allowed to expand from 1.5 : to 12.5 L against a

    asked by Emmanuel on March 29, 2009
  20. Human and Social Biology

    A calorimeter was used to oxidise completely 2g of a food sample,causing a temperature rise of 5degrees C in 100cm3 of water(this figure includes the water equivalent of the apparatus). How much energy was present in the food sample(in joule per g)?

    asked by Nikita on January 8, 2012
  21. Chemistry Lab

    Data and Calculations: 1. Volume of water in calorimeter: 100.0 mL 2. Mass of water in calorimeter (water's density 1.00g/mL): 100.0g 3. Initial Temperature of water in calorimeter:19.5 degrees Celsius 4. Final Temperature of water in calorimeter: 3.0

    asked by Coolest on February 7, 2017
  22. Chemistry

    The human body obtains 885 kJ of energy from a chocolate chip cookie. If this energy were used to vaporize at 100 degree Celsius, how many grams of water could be vaporized? The heat of vaporization of water at 100 degrees Celsius is 40.7 kJ/mole.

    asked by Jane on July 19, 2016
  23. Chemistry

    The human body obtains 885 kJ of energy from a chocolate chip cookie. If this energy were used to vaporize at 100 degree Celsius, how many grams of water could be vaporized? The heat of vaporization of water at 100 degrees Celsius is 40.7 kJ/mole.

    asked by Jane on July 20, 2016
  24. Science

    If 1 mole of acetic acid and 1 mole of ethyl alcohol are mixed and reaction proceeds to equilibrium, the concentration of acetic acid and water are found 1/3 and 2/3 mole respectively. If 1 mole of ethyl acetate and 3 mole of water are mixed,how much ester

    asked by Chador on June 8, 2017
  25. Chemistry

    I had a problem that asked what volume of water in gallons would need to be split to store the same amount of energy as found in 10.0 gallons of gasoline? I got an answer of 10.06 gallons of water. Just by looking at it, does this sound like it could be

    asked by Morgan on November 4, 2010
  26. chem please help

    In the reaction AgNO3(aq) + HCl(aq) AgCl(s) + HNO3(aq) + heat, when 0.70 mole of AgNO3 and 0.70 mole of HCl react, the temperature of 50 g of water increases from 15°C to 30°C. If the specific heat of water is 4.18 J/g•°C, how much energy was produced

    asked by Morgan on November 22, 2014
  27. Chemistry

    8 g of sulphur is burnt to form SO2 which is oxidized by Cl2 water The solution is treated with BaCl2 solution The amount of BaSO4 precipitated is A/ I mole B/ 0.5 mole C/ 0.24 mole D/. 0.25 mole Which option is correct??

    asked by Viraj on June 24, 2014
  28. Science

    Consider the diatomic molecule Na2. For simplicity let the basis set consist of the orbitals: and . In the molecule the overlap integral between the 3s orbitals is 0.45. Answer the following questions using the orbital energies determined using the Revised

    asked by Soso on November 6, 2016
  29. chemistry

    The reaction between sodium hydroxide and hydrobromic acid is represented in the equation below: OH- + H+ -> H2O A 62.5 mL sample of 1.86 M NaOH at 22.5 deg Celsius was mixed with 62.5 mL sample of 1.86 M of HBr at 22.5 deg Celsius in a coffee cup

    asked by lola on November 2, 2014
  30. Chemistry

    How does HI(g) split into H and I? 1. Does it collide with another HI(g) and energy is lost? or the electron being shared gets dislocated? 2. If so, then can HI(g) collide with anything (H or I or the wall) to split up?

    asked by BlahxD on April 6, 2011
  31. Reading/Language Arts

    I,m writing a paragraph about using resources responsibly.And I have to use three vocabulary words adverse,generate,apparatus. And this is what I wrote. The energy to the house I live in has had a adverse affect.Do to the apparatus not getting enough

    asked by Ana on January 12, 2013
  32. chemistry

    Which of the following solutes dissolved in 1000 g of water would provide a solution with the LOWEST freezing point? A. 0.030 mole urea, CO(NH2)2 B. 0.030 mole acetic acid, CH3COOH C. 0.030 mole ammonium nitrate, NH4NO3 D. 0.030 mole calcium sulfate, CaSO4

    asked by random on June 20, 2010
  33. Chemistry

    A light photon with a frequency of at least 0.0373 × 1016 Hz is required to split apart diiodine according to the equation: I2(g) → 2I(g) Calculate the energy (kJ) required to break apart a mole of diiodine. Express answer in scientific notation. I got

    asked by Kyle on January 30, 2012
  34. chemistry

    A light photon with a frequency of at least 0.0906 x 10^16 Hz is required to split apart hydrogen bromide according to the equation: HBr(g) --> H(g) + Br(g) Calculate the energy (kJ) required to break apart a mole of hydrogen bromide. Express answer in

    asked by adriana on January 31, 2012
  35. chemistry

    A light photon with a frequency of at least 0.0906 ~ 1016 Hz is required to split apart hydrogen bromide according to the equation: HBr(g) ¨ H(g) + Br(g) Calculate the energy (kJ) required to break apart a mole of hydrogen bromide. Express answer in

    asked by adriana on January 31, 2012
  36. analytical chemistry

    the problem is find the pH of a solution prepared by dissolving all of the following in sufficient water to yield 1.00 L of solution :0.180 mole of chloroacetic acid (CICH2CO2H),0.020 mole ofCICH2CO2Na,0.080 mole HNO3, and 0.080 mole Ca(OH)2. Assume that

    asked by lolo on March 31, 2013
  37. Chemisty (please read soon)

    which will become a buffer in 1L of H2O? a) 0.3 mole KOH & 0.3 mole HBr b) 0.5 mole NH3 & 0.5 mole HCl c) 0.2 mole NaCl & 0.3 mole HCl d) 0.2 mole NaOH & 0.2 mole HBr e) 0.4 mole HC2H3O2 & 0.2 mole NaOH I think that the answer is e. Is that correct?

    asked by Zac on April 29, 2012
  38. Chemistry

    Estimate the change in energy when solid rubidium reacts with gaseous diatomic chlorine molecules. Express your answer in units of kJ/mole. Do not refer to the periodic table to solve this problem. The following data may be useful in your calculation:

    asked by Basim on November 17, 2012
  39. chemistry

    Estimate the change in energy when solid rubidium reacts with gaseous diatomic chlorine molecules. Express your answer in units of kJ/mole. Do not refer to the periodic table to solve this problem. The following data may be useful in your calculation:

    asked by amar chauhan on November 17, 2012
  40. Chemistry

    Determine the simplest formula for compounds that have the following analyses. The data may not be exact. A. 28.5% iron, 48.6% O, 22.9% S This is what I did: 28.5g Fe 1 mole Fe/55.847g = .51 mole 48.6g O 1 mole O/15.999g = 3.04 mole 22.9g S 1 mole

    asked by Chopsticks on January 21, 2009
  41. Chemistry

    Use an enthalpy diagram to calculate the lattice energy of CaCl2 from the following information. Energy needed to vaporize one mole of Ca(s) is 192 kJ. For calcium, the first IE = 589.5 kJ mol-1, the second IE = 1146 kJ mol-1. The electron affinity of Cl

    asked by Luke on June 29, 2014
  42. Science "HELP"!

    Passage:The particles of matter are in constant motion. The energy of motion is called kinetic energy, so the particles of matter have kinetic energy. As matter becomes warmer, its particles move faster. As a result, their kinetic energy increases.

    asked by #FreeGucci on April 15, 2016
  43. f.s.t.c y

    (chemistry) 23g of ethanol was mixed with 72g of water in a reaction vessel.calculate the mole fraction and mole percent of water.calculate the mole fraction and mole percent of ethanol

    asked by shazali on November 5, 2015
  44. Chemistry

    According to the balanced equation 6 moles of carbon dioxide will react with 6 moles of water to produce 1 mole of sugar and 6 moles of oxygen. What are the molar masses of the following compounds from the photosynthesis equation? CO2=___________g=1 mole

    asked by Lyssa on February 4, 2012
  45. Math

    The basic recipe for split pea soup serves 8 people. Find the amount of each ingredient needed to serve 32 people. 2 1/4 cup of dried split peas 2 quarts of water 3/4 cup of chopped onions 1 cup chopped celery 2 pound ham shank Can anyone help me through

    asked by ILTHSM_ on October 24, 2018
  46. biology

    A. The change in Gibbs free energy of ATP synthesis (acknowledging the body requires 46.3 kJ/mole) is.. This reaction is endergonic or exergonic? The energy for ATP synthesis comes from Is energy used to make ATP transferred in a single reaction or is it

    asked by Anonymous on September 28, 2011
  47. chemistry

    What happens if the water hoses are incorrectly attached in a distillation apparatus - i.e. the water in and water out are switched?

    asked by Cassie on October 8, 2012
  48. Science!!

    How do you expect the water level to change when the apparatus is placed in warm water? In cool water?

    asked by Lucia Vendales on January 8, 2016
  49. Physics

    Drug has heat of melting 25 K jule/mole. Solubility of drug in water is 0.00082 M at 25 C and 0.00144M at 35 C. Find mole fractions x1 and x2 at each temperature.

    asked by kinjal on December 17, 2010
  50. AP Chem

    What energy change is associated with the reaction to obtain one mole of H2 from one mole of water vapor? The balanced equation is 2 H2O(g) -> 2 H2(g) + O2(g)and the relevant bond energies are H-H : 436 kJ/mol; H-O : 467 kJ/mol; O-O : 146 kJ/mol; O=O : 498

    asked by Kai on November 15, 2010
  51. AP Chem

    What energy change is associated with the reaction to obtain one mole of H2 from one mole of water vapor? The balanced equation is 2 H2O(g) -> 2 H2(g) + O2(g)and the relevant bond energies are H-H : 436 kJ/mol; H-O : 467 kJ/mol; O-O : 146 kJ/mol; O=O : 498

    asked by Kai on November 15, 2010
  52. chemistry

    Something that will lower the freezing point of water to -3.7 degrees Celsius if one mole were placed in 1000 grams of water? To solve this I know I have to use the equation Tf= IKfm, Tf= 3.7, but how I go about the problem there if I don't know Kf or the

    asked by A on May 27, 2014
  53. physics

    The index of refraction of water for a given monochromatic light in water is n=4/3. The wavelength of this light in water is 500nm.  a) find the speed of this light in water.  b) find the energy of one photon of this light . Does this energy change if

    asked by vicky on February 23, 2017
  54. College Chemistry

    Determine how many grams of water can be produced from excess propane C3H8 and 2.55g oxygen? MM 02 = 32 and MM H2O = 18.2. I tried 2.5 gm O2 X 5 mole O2/32.00 gm O2 x 4 mole H2O/5 mole O2 = 1.40. This is close but not correct. The answer is 1.15. Can you

    asked by Robyn on April 24, 2011
  55. gen chem

    What is the ph of a soulution made by adding 0.20 mole NH3(aq) to 0.30 mole NH4Cl and 0.10 mole KOH to 100ml of water? Kb for NH3 (aq)=1.8x10^-5M

    asked by nick on March 1, 2015
  56. Science

    The Hoover Dam is a hydroelectric power plant that converts the energy of falling water into electricity. Which of the following determines the amount of potential energy of the water stored in the reservoir of the dam? Choose all that apply. A - the

    asked by Max on December 5, 2018
  57. AP Chemistry--gas law questions

    Hey, My AP Chem class did a lab for determing the molar mass of a volatile liquid by vapor density. There are a few calculations that I can't seem to get: 1.) The moles of air displaced by the volatile liquid vapor (at RT) 2.) The molar mass of air

    asked by Warren on November 25, 2006
  58. Chemistry

    "The sun emits UV radiation that can have serious health consequences. In particular, so-called UVB radiation is mostly absorbed by the ozone layer in the upper atmosphere (altitudes of 10 - 50 km), but the part that reaches the earth can cause DNA

    asked by Travis on September 13, 2012
  59. Physics

    A 72.0 kg swimmer jumps into the old swimming hole from a tree limb that is 4.00 m above the water. Part A- Use energy conservation to find his speed just as he hits the water if he just holds his nose and drops in. Part B- Use energy conservation to find

    asked by Jess on November 24, 2017
  60. Chemistry

    At 20 C (approximately room temperature) the average velocity of N2 molecules in air is 1050 mph. What is the velocity of a molecule of N2? What is the kinetic energy of a N2 molecule with this velocity? What is the kinetic energy of a mole of N2? I know

    asked by melinda on March 13, 2011
  61. chemistry

    "The sun emits UV radiation that can have serious health consequences. In particular, so-called UVB radiation is mostly absorbed by the ozone layer in the upper atmosphere (altitudes of 10 - 50 km), but the part that reaches the earth can cause DNA

    asked by Travis on September 14, 2012
  62. Chemistry

    It takes 208.4 kJ of energy to remove 1 mole of electrons from 1 mole of atoms on the surface of rubidium metal. How much energy does it take to remove a single electron from an atom on the surface of solid rubidium in Joules? What is the maximum

    asked by franz on October 30, 2011
  63. chemistry(check my work)

    If 6.01 g of K2SO3 dissolved in 930 mL of water reacts stoichiometrically according to the balanced equation in a reaction solution with a total volume of 990 mL, what is the molarity (M) of KCl produced? K2SO3(aq) + 2 HCl(aq) → SO2(g) + 2KCl(aq) +

    asked by eng on April 3, 2010
  64. science

    3 moles of pesticide of molecular mass 200 g/mole is applied to a closed system consisting of 20 m3 of water, 10 m3 of air, 1 m3 of sediment, and 0.001 m3 of fish. Determine the concentration and amount in both grams and mole units in air, water, sediment

    asked by gift on March 27, 2014
  65. Chemistry

    1. As I understand it--As an acid is added to neutral water the (OH-) will...decrease?? Is this right? 2. If you made up a solution of NaOH by adding 0.010 mole of solid NaOH to 1.0 L of distilled water, what would be the concentration of the OH-?...I

    asked by April on May 15, 2012
  66. Science

    The water in a beaker has a mass of 18g. Electricity is passed through the water for two hours. Afterward the water has a mass of only 16g. What happened to the missing mass? The water heated up due to the electrical current going through it, and some of

    asked by AJ on April 22, 2007
  67. Chemistry- need fast help! Thanks

    2 H2O (l) → 2 H2 (g) + O2 (g) What volume of water in gallons would need to be split to store the same amount of energy as found in 10.0 gallons of gasoline? (Gasoline contains 44.4 MJ/kg, or 32.0 MJ/L, and has a density of 0.72 g/mL where 1 L =

    asked by John on November 5, 2010
  68. Science

    1. Massive amounts of destructive energy are released when a nuclear fission bomb explodes. Where does that energy come from? a) A chain reaction occurs when uranium atoms split, releasing nuclear energy. b) Molecules break down, releasing chemical energy.

    asked by Lez on May 15, 2016
  69. science

    1.The energy associated with the absorption of a photn of wavelength 4.26 micrometers is ______________? 2.The bond energy associated with the bond between the Nitrogen atom and Bromine atom is______________________? 1. See other post on plancks equation.

    asked by Tahira on August 1, 2005
  70. physics

    A copper container of mass 100g contains 500g of water. A steel paddle of mass 85g stirs the water. A pulley system operates the paddle. A) the mass (15kg) drops 2,4m, turning the steel paddle. Assume heat lost to surrounding is negligible. 1. Find the

    asked by Haiano on July 20, 2014
  71. physics

    Approximately 5.5 X10^6 kg of water fall 50m over Niagara Falls each second. a) What is the decrease in the gravitational potential energy of the water-Earth system each second? b) If all this energy could be converted to electrical energy (can’t happen)

    asked by Brian on January 10, 2007
  72. physics

    Approximately 5.5 X10^6 kg of water fall 50m over Niagara Falls each second. a) What is the decrease in the gravitational potential energy of the water-Earth system each second? b) If all this energy could be converted to electrical energy (can’t happen)

    asked by Brian on January 11, 2007
  73. Chemistry

    Methanol burns in oxygen to make carbon dioxide and water. The equation is exothermic, with 1452kJ/mol. of energy being released. (a)Write a balanced equation for the combustion of methanol. -methanol+oxygen=carbon dioxide+water -CH3OH+O2=CO2+H2O (how do

    asked by Anonymous on April 21, 2008
  74. History, Urgent

    Early in the war, American Indians living in Indian Territory disagreed on which side to take. Which of the following best describes the split that occurred? A.groups split along religious lines (Christians vs. non-Christians) B.groups split along tribal

    asked by Katt<3Bobby on October 4, 2014
  75. Chemistry

    1 mole of equimolar mixture of ferric oxalate and ferrous oxalate will require xmole of KMnO4 in acidic medium for complete oxidation, x isis: a) 0.5 mole b) 0.9 mole c) 1.2 mole d) 4.5 mole

    asked by Susan on July 26, 2014
  76. Chemistry - Energy: Phase Changes

    If 13.4 kJ of energy are added to 1.00 kg of ice at 0 degrees Celsius, how much water at 0 degrees Celsius is produced? How much ice is left? The molar heat of melting is 6.01 kJ/mol. So... 6.01 kJ -> 1 mol (6.01 kJ of energy can melt 1 mole of ice)

    asked by Kid on November 12, 2015
  77. Chemistry please help

    The reaction through which carbon changes from graphite to diamond form is represented by the equation C(graphite) ---> C(diamond) delta H: ? Using the reactions below, determine the amount of heat absorbed in the change of one mole of graphite to one mole

    asked by Rose on April 7, 2016
  78. Chemistry please help!

    The reaction through which carbon changes from graphite to diamond form is represented by the equation C(graphite) ---> C(diamond) delta H: ? Using the reactions below, determine the amount of heat absorbed in the change of one mole of graphite to one mole

    asked by Rose on April 7, 2016
  79. Chem

    The reaction through which carbon changes from graphite to diamond form is represented by the equation C(graphite) ---> C(diamond) delta H: ? Using the reactions below, determine the amount of heat absorbed in the change of one mole of graphite to one mole

    asked by Rose on April 6, 2016
  80. CHEM. help please

    2 H2O (l) → 2 H2 (g) + O2 (g) 1. Without doing any calculations, which side will enthalpy favor in this reaction? Entropy? 2. What volume of water in gallons would need to be split to store the same amount of energy as found in 10.0 gallons of gasoline?

    asked by Andrew on November 2, 2010
  81. Physics

    50 grams of ice cubes at -5oC is added to a 1 litre (1 kg) of water that is initially at 30oC. a) Use the table of values to find the energy needed to melt the ice:(energy to raise the temperature of the ice to 0oC+ change the state of the ice to water) b)

    asked by Ying on January 25, 2015
  82. physics

    Show that the kinetic energy of two particles with mass m1 and m2 split into the energy of the centre of mass and the kinetic energy of relative motion.

    asked by don on March 9, 2015
  83. College Chemistry

    One mole of H2O(g) at 1.00 atm and 100.°C occupies a volume of 30.6 L. When one mole of H2O(g) is condensed to one mole of H2O(l) at 1.00 atm and 100.°C, 40.66 kJ of heat is released. If the density of H2O(l) at this temperature and pressure is 0.996

    asked by Amanda on October 31, 2011
  84. chemistry

    One mole of H2O(g) at 1.00 atm and 100.°C occupies a volume of 30.6 L. When one mole of H2O(g) is condensed to one mole of H2O(l) at 1.00 atm and 100.°C, 40.66 kJ of heat is released. If the density of H2O(l) at this temperature and pressure is 0.996

    asked by Anonymous on January 21, 2012
  85. chem

    One mole of H2O(g) at 1.00 atm and 100.°C occupies a volume of 30.6 L. When one mole of H2O(g) is condensed to one mole of H2O(l) at 1.00 atm and 100.°C, 40.66 kJ of heat is released. If the density of H2O(l) at this temperature and pressure is 0.996

    asked by mel on November 26, 2007
  86. Chemistry

    One mole of H2O(g) at 1.00 atm and 100.°C occupies a volume of 30.6 L. When one mole of H2O(g) is condensed to one mole of H2O(l) at 1.00 atm and 100.°C, 40.66 kJ of heat is released. If the density of H2O(l) at this temperature and pressure is 0.996

    asked by nicole on October 8, 2010
  87. science

    Calculate the heat of combustion of candle wax in kJ/mole. The standard heat of formation (∆Hf ) of candle wax (C20H42) is -2230 kJ/mole. The standard heat of formation (∆Hf ) of carbon dioxide is -394 kJ/mole. The standard heat of formation (∆Hf )

    asked by emma on April 25, 2013
  88. Chemistry

    Hi, Please provide assistance on the following problem. I worked out part of it, but do not know what to do after calculating pH for HCl. Suppose you dissolved 0.0365 grams of HCl in water to give a final volume of 10.0 mL. The molar mass of HCl is 36.5

    asked by Jeremy on March 19, 2012
  89. Physics

    A fire hose can project water at a rate of 6.00x10^2 litres per minute to a height of 40.0m. Find: a) the velocity with which the water leaves the tube b) the kinetic energy of the water as it leaves the hose c) the kinetic energy of the water at 40.0m.

    asked by Jane on August 26, 2012
  90. CHEMISTRY

    2 C8H18 + 25 O2 → 16 CO2 + 18 H2O. WHAT IS THE MOLE-TO-MOLE RATIO BETWEEN OXYGEN GAS AND WATER?

    asked by JENNIFER on February 22, 2017
  91. Chemistry

    He is the lightest noble gas component of air, and Xe is the heaviest. Perform the following calculations, using R=8.314J/(molXK)and M in kg/mol. 1. Find the average kinetic energy per mole of He and Xe at 30 degrees C. 2. Find the average kinetic energy

    asked by Missy* on October 7, 2010
  92. chemistry

    We encounter a large number of waves every day without realizing it. One such source is radio waves. A typical frequency for radio transmission is 680 kHz. How much energy does one mole of radio waves carry? X rays used by doctors to view bones are much

    asked by Maria on January 22, 2011
  93. Chemistry

    How will the boiling point of a liter of water containing 1 mole of sodium chloride (NaCl) compare with that of a liter of water containing 1 mole of calcium chloride (CaCl2)? Explain your answer.

    asked by Anonymous on June 2, 2011
  94. chemistry

    30. How will the boiling point of a liter of water containing 1 mole of sodium chloride (NaCl) compare with that of a liter of water containing 1 mole of calcium chloride (CaCl2)? Explain your answer

    asked by Anonymous on June 22, 2011
  95. CHemistry

    What is the pH of the resulting solution when 0.20 mole of NaF and 0.05 mole HCl are added to 100 mL water? The Ka for HF is 3.95x10^-4M

    asked by Mike on March 1, 2015
  96. Physics

    Using light of wavelength 600.0nm in a double slit apparatus we find delta x = 1.0cm. If we use the same apparatus for light of wavelength 450.0 nm, what is the new delta x on the screen? Delta x = L*lambda/d But L and d are not given, so how do I approach

    asked by Neenah on December 16, 2014
  97. Chemistry

    A substance has the following properties: Heat capacities: 1.34 J/g oC (solid) 3.02 J/g oC (liquid) 2.55 J/g oC (gas) Heat of Fusion = 4.23 kJ/mole Heat of Vaporization = 23.5 kJ/mole Boiling Point = 88.5 oC Melting Point = -30.0 oC Molar Mass = 96.3

    asked by Amanda on November 25, 2014
  98. College Chemistry

    In energy terms, ionization of an electron in an atom corresponds to the transition from whatever quantum state the electron is in to an energy of 0 KJ/mole. Calculate the energy in joules needed to remove one electron in the n=1 state from a hydrogen

    asked by Bach on April 28, 2010
  99. chemistry

    Explain very clearly why a mole of hydrogen chloride depresses the freezing point of 1.0kg of water by almost twice as much as a mole of ethanol.

    asked by leslie on October 13, 2011
  100. Sciemce

    How many mole of ammonium nitrate would be consumed if 15 mole of water were produced?

    asked by Hayden on March 19, 2013

Pages

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20
  21. 21
  22. 22
  23. 23
  24. 24
  25. 25
  26. 26
  27. 27
  28. 28
  29. 29
  30. 30
  31. 31
  32. 32
  33. 33
  34. 34
  35. 35
  36. 36
  37. 37
  38. 38
  39. 39
  40. 40
  41. 41
  42. 42
  43. 43
  44. 44
  45. 45
  46. 46
  47. 47
  48. 48
  49. 49
  50. 50
  51. 51
  52. 52
  53. 53
  54. 54
  55. 55
  56. 56
  57. 57
  58. 58
  59. 59
  60. 60
  61. 61
  62. 62
  63. 63
  64. 64
  65. 65
  66. 66
  67. 67
  68. 68
  69. 69
  70. 70
  71. 71
  72. 72
  73. 73
  74. 74
  75. 75
  76. 76
  77. 77
  78. 78
  79. 79
  80. 80
  81. 81
  82. 82
  83. 83
  84. 84
  85. 85
  86. 86
  87. 87
  88. 88
  89. 89
  90. 90
  91. 91
  92. 92
  93. 93
  94. 94
  95. 95
  96. 96
  97. 97
  98. 98
  99. 99
  100. 100
  101. 101
  102. 102
  103. 103
  104. 104
  105. 105
  106. 106
  107. 107
  108. 108
  109. 109
  110. 110
  111. 111
  112. 112
  113. 113
  114. 114
  115. 115
  116. 116
  117. 117
  118. 118
  119. 119
  120. 120
  121. 121
  122. 122
  123. 123
  124. 124
  125. 125
  126. 126
  127. 127
  128. 128
  129. 129
  130. 130
  131. 131
  132. 132
  133. 133
  134. 134
  135. 135
  136. 136
  137. 137
  138. 138
  139. 139
  140. 140
  141. 141
  142. 142
  143. 143
  144. 144
  145. 145
  146. 146
  147. 147
  148. 148
  149. 149
  150. 150
  151. 151
  152. 152
  153. 153
  154. 154
  155. 155
  156. 156
  157. 157
  158. 158
  159. 159
  160. 160
  161. 161
  162. 162
  163. 163
  164. 164
  165. 165
  166. 166
  167. 167
  168. 168
  169. 169
  170. 170
  171. 171
  172. 172
  173. 173
  174. 174
  175. 175
  176. 176
  177. 177
  178. 178
  179. 179
  180. 180
  181. 181
  182. 182
  183. 183
  184. 184
  185. 185
  186. 186
  187. 187
  188. 188
  189. 189
  190. 190
  191. 191
  192. 192
  193. 193
  194. 194
  195. 195
  196. 196
  197. 197
  198. 198
  199. 199
  200. 200
  201. 201
  202. 202
  203. 203
  204. 204
  205. 205
  206. 206
  207. 207
  208. 208
  209. 209
  210. 210
  211. 211
  212. 212
  213. 213
  214. 214
  215. 215
  216. 216
  217. 217
  218. 218
  219. 219
  220. 220
  221. 221
  222. 222
  223. 223
  224. 224
  225. 225
  226. 226
  227. 227
  228. 228
  229. 229
  230. 230
  231. 231
  232. 232
  233. 233
  234. 234
  235. 235
  236. 236
  237. 237
  238. 238
  239. 239
  240. 240
  241. 241
  242. 242
  243. 243
  244. 244
  245. 245
  246. 246
  247. 247
  248. 248
  249. 249
  250. 250
  251. 251
  252. 252
  253. 253
  254. 254
  255. 255
  256. 256
  257. 257
  258. 258
  259. 259
  260. 260
  261. 261
  262. 262
  263. 263
  264. 264
  265. 265
  266. 266
  267. 267
  268. 268
  269. 269
  270. 270
  271. 271
  272. 272
  273. 273
  274. 274
  275. 275
  276. 276
  277. 277
  278. 278
  279. 279
  280. 280
  281. 281
  282. 282
  283. 283
  284. 284
  285. 285
  286. 286
  287. 287
  288. 288
  289. 289
  290. 290
  291. 291
  292. 292
  293. 293
  294. 294
  295. 295
  296. 296
  297. 297
  298. 298
  299. 299
  300. 300
  301. 301
  302. 302
  303. 303
  304. 304
  305. 305
  306. 306
  307. 307
  308. 308
  309. 309
  310. 310
  311. 311
  312. 312
  313. 313
  314. 314
  315. 315
  316. 316
  317. 317
  318. 318
  319. 319
  320. 320
  321. 321
  322. 322
  323. 323
  324. 324
  325. 325
  326. 326
  327. 327
  328. 328
  329. 329
  330. 330
  331. 331
  332. 332
  333. 333
  334. 334
  335. 335
  336. 336
  337. 337
  338. 338
  339. 339
  340. 340
  341. 341
  342. 342
  343. 343
  344. 344
  345. 345
  346. 346
  347. 347
  348. 348
  349. 349
  350. 350
  351. 351
  352. 352
  353. 353
  354. 354
  355. 355
  356. 356
  357. 357
  358. 358
  359. 359
  360. 360
  361. 361
  362. 362
  363. 363
  364. 364
  365. 365
  366. 366
  367. 367
  368. 368
  369. 369
  370. 370
  371. 371
  372. 372
  373. 373
  374. 374
  375. 375
  376. 376
  377. 377
  378. 378
  379. 379
  380. 380
  381. 381
  382. 382
  383. 383
  384. 384
  385. 385
  386. 386
  387. 387
  388. 388
  389. 389
  390. 390
  391. 391
  392. 392
  393. 393
  394. 394
  395. 395
  396. 396
  397. 397
  398. 398
  399. 399
  400. 400
  401. 401
  402. 402
  403. 403
  404. 404
  405. 405
  406. 406
  407. 407
  408. 408
  409. 409
  410. 410
  411. 411
  412. 412
  413. 413
  414. 414
  415. 415
  416. 416
  417. 417
  418. 418
  419. 419
  420. 420
  421. 421
  422. 422
  423. 423
  424. 424
  425. 425
  426. 426
  427. 427
  428. 428
  429. 429
  430. 430
  431. 431
  432. 432
  433. 433
  434. 434
  435. 435
  436. 436
  437. 437
  438. 438
  439. 439
  440. 440
  441. 441
  442. 442
  443. 443
  444. 444
  445. 445
  446. 446
  447. 447
  448. 448
  449. 449
  450. 450
  451. 451
  452. 452
  453. 453
  454. 454
  455. 455
  456. 456
  457. 457
  458. 458
  459. 459
  460. 460
  461. 461
  462. 462
  463. 463
  464. 464
  465. 465
  466. 466
  467. 467
  468. 468
  469. 469
  470. 470
  471. 471
  472. 472
  473. 473
  474. 474
  475. 475
  476. 476
  477. 477
  478. 478
  479. 479
  480. 480
  481. 481
  482. 482
  483. 483
  484. 484
  485. 485
  486. 486
  487. 487
  488. 488
  489. 489
  490. 490
  491. 491
  492. 492
  493. 493
  494. 494
  495. 495
  496. 496
  497. 497
  498. 498
  499. 499
  500. 500
  501. 501
  502. 502
  503. 503
  504. 504
  505. 505
  506. 506
  507. 507
  508. 508
  509. 509
  510. 510
  511. 511
  512. 512
  513. 513
  514. 514
  515. 515
  516. 516
  517. 517
  518. 518
  519. 519
  520. 520
  521. 521
  522. 522
  523. 523
  524. 524
  525. 525
  526. 526
  527. 527
  528. 528
  529. 529
  530. 530
  531. 531
  532. 532
  533. 533
  534. 534
  535. 535
  536. 536
  537. 537
  538. 538
  539. 539
  540. 540
  541. 541
  542. 542
  543. 543
  544. 544
  545. 545
  546. 546
  547. 547
  548. 548
  549. 549
  550. 550
  551. 551
  552. 552
  553. 553
  554. 554
  555. 555
  556. 556
  557. 557
  558. 558
  559. 559
  560. 560
  561. 561
  562. 562
  563. 563
  564. 564
  565. 565
  566. 566
  567. 567
  568. 568
  569. 569
  570. 570
  571. 571
  572. 572
  573. 573
  574. 574
  575. 575
  576. 576
  577. 577
  578. 578
  579. 579
  580. 580
  581. 581
  582. 582
  583. 583
  584. 584
  585. 585
  586. 586
  587. 587
  588. 588
  589. 589
  590. 590
  591. 591
  592. 592
  593. 593
  594. 594
  595. 595
  596. 596
  597. 597
  598. 598
  599. 599
  600. 600
  601. 601
  602. 602
  603. 603
  604. 604
  605. 605
  606. 606
  607. 607
  608. 608
  609. 609
  610. 610
  611. 611
  612. 612
  613. 613
  614. 614
  615. 615
  616. 616
  617. 617
  618. 618
  619. 619
  620. 620
  621. 621
  622. 622
  623. 623
  624. 624
  625. 625
  626. 626
  627. 627
  628. 628
  629. 629
  630. 630
  631. 631
  632. 632
  633. 633
  634. 634
  635. 635
  636. 636
  637. 637
  638. 638
  639. 639
  640. 640
  641. 641
  642. 642
  643. 643
  644. 644
  645. 645
  646. 646
  647. 647
  648. 648
  649. 649
  650. 650
  651. 651
  652. 652
  653. 653
  654. 654
  655. 655
  656. 656
  657. 657
  658. 658
  659. 659
  660. 660
  661. 661
  662. 662
  663. 663
  664. 664
  665. 665
  666. 666
  667. 667
  668. 668
  669. 669
  670. 670
  671. 671
  672. 672
  673. 673
  674. 674
  675. 675
  676. 676
  677. 677
  678. 678
  679. 679
  680. 680
  681. 681
  682. 682
  683. 683
  684. 684
  685. 685
  686. 686
  687. 687
  688. 688
  689. 689
  690. 690
  691. 691
  692. 692
  693. 693
  694. 694
  695. 695
  696. 696
  697. 697
  698. 698
  699. 699
  700. 700
  701. 701
  702. 702
  703. 703
  704. 704
  705. 705
  706. 706
  707. 707
  708. 708
  709. 709
  710. 710
  711. 711
  712. 712
  713. 713
  714. 714
  715. 715
  716. 716
  717. 717
  718. 718
  719. 719
  720. 720
  721. 721
  722. 722
  723. 723
  724. 724
  725. 725
  726. 726
  727. 727
  728. 728
  729. 729
  730. 730
  731. 731
  732. 732
  733. 733
  734. 734
  735. 735
  736. 736
  737. 737
  738. 738
  739. 739
  740. 740
  741. 741
  742. 742
  743. 743
  744. 744
  745. 745
  746. 746
  747. 747
  748. 748
  749. 749
  750. 750
  751. 751
  752. 752
  753. 753
  754. 754
  755. 755
  756. 756
  757. 757
  758. 758
  759. 759
  760. 760
  761. 761
  762. 762
  763. 763
  764. 764
  765. 765
  766. 766
  767. 767
  768. 768
  769. 769
  770. 770
  771. 771
  772. 772
  773. 773
  774. 774
  775. 775
  776. 776
  777. 777
  778. 778
  779. 779
  780. 780
  781. 781
  782. 782
  783. 783
  784. 784
  785. 785
  786. 786
  787. 787
  788. 788
  789. 789
  790. 790
  791. 791
  792. 792
  793. 793
  794. 794
  795. 795
  796. 796
  797. 797
  798. 798
  799. 799
  800. 800
  801. 801
  802. 802
  803. 803
  804. 804
  805. 805
  806. 806
  807. 807
  808. 808
  809. 809
  810. 810
  811. 811
  812. 812
  813. 813
  814. 814
  815. 815
  816. 816
  817. 817
  818. 818
  819. 819
  820. 820
  821. 821
  822. 822
  823. 823
  824. 824
  825. 825
  826. 826
  827. 827
  828. 828
  829. 829
  830. 830
  831. 831
  832. 832
  833. 833
  834. 834
  835. 835
  836. 836
  837. 837
  838. 838
  839. 839
  840. 840
  841. 841
  842. 842
  843. 843
  844. 844
  845. 845
  846. 846
  847. 847
  848. 848
  849. 849
  850. 850
  851. 851
  852. 852
  853. 853
  854. 854
  855. 855
  856. 856
  857. 857
  858. 858
  859. 859
  860. 860
  861. 861
  862. 862
  863. 863
  864. 864
  865. 865
  866. 866
  867. 867
  868. 868
  869. 869
  870. 870
  871. 871
  872. 872
  873. 873
  874. 874
  875. 875
  876. 876
  877. 877
  878. 878
  879. 879
  880. 880
  881. 881
  882. 882
  883. 883
  884. 884
  885. 885
  886. 886
  887. 887
  888. 888
  889. 889
  890. 890
  891. 891
  892. 892
  893. 893
  894. 894
  895. 895
  896. 896
  897. 897
  898. 898
  899. 899
  900. 900
  901. 901
  902. 902
  903. 903
  904. 904
  905. 905
  906. 906
  907. 907
  908. 908
  909. 909
  910. 910
  911. 911
  912. 912
  913. 913
  914. 914
  915. 915
  916. 916
  917. 917
  918. 918
  919. 919
  920. 920
  921. 921
  922. 922
  923. 923
  924. 924
  925. 925
  926. 926
  927. 927
  928. 928
  929. 929
  930. 930
  931. 931
  932. 932
  933. 933
  934. 934
  935. 935
  936. 936
  937. 937
  938. 938
  939. 939
  940. 940
  941. 941
  942. 942
  943. 943
  944. 944
  945. 945
  946. 946
  947. 947
  948. 948
  949. 949
  950. 950
  951. 951
  952. 952
  953. 953
  954. 954
  955. 955
  956. 956
  957. 957
  958. 958
  959. 959
  960. 960
  961. 961
  962. 962
  963. 963
  964. 964
  965. 965
  966. 966
  967. 967
  968. 968
  969. 969
  970. 970
  971. 971
  972. 972
  973. 973
  974. 974
  975. 975
  976. 976
  977. 977
  978. 978
  979. 979
  980. 980
  981. 981
  982. 982
  983. 983
  984. 984
  985. 985
  986. 986
  987. 987
  988. 988
  989. 989
  990. 990
  991. 991
  992. 992
  993. 993
  994. 994
  995. 995
  996. 996
  997. 997
  998. 998
  999. 999
  1000. 1000
  1001. 1001
  1002. 1002
  1003. 1003
  1004. 1004
  1005. 1005
  1006. 1006
  1007. 1007
  1008. 1008
  1009. 1009
  1010. 1010
  1011. 1011
  1012. 1012
  1013. 1013
  1014. 1014
  1015. 1015
  1016. 1016
  1017. 1017
  1018. 1018
  1019. 1019
  1020. 1020
  1021. 1021
  1022. 1022
  1023. 1023
  1024. 1024
  1025. 1025
  1026. 1026
  1027. 1027
  1028. 1028
  1029. 1029
  1030. 1030
  1031. 1031
  1032. 1032
  1033. 1033
  1034. 1034
  1035. 1035
  1036. 1036
  1037. 1037
  1038. 1038
  1039. 1039
  1040. 1040
  1041. 1041
  1042. 1042
  1043. 1043
  1044. 1044
  1045. 1045
  1046. 1046
  1047. 1047
  1048. 1048
  1049. 1049
  1050. 1050
  1051. 1051
  1052. 1052
  1053. 1053
  1054. 1054
  1055. 1055
  1056. 1056
  1057. 1057
  1058. 1058
  1059. 1059
  1060. 1060
  1061. 1061
  1062. 1062
  1063. 1063
  1064. 1064
  1065. 1065
  1066. 1066
  1067. 1067
  1068. 1068
  1069. 1069
  1070. 1070
  1071. 1071
  1072. 1072
  1073. 1073
  1074. 1074
  1075. 1075
  1076. 1076
  1077. 1077
  1078. 1078
  1079. 1079
  1080. 1080
  1081. 1081
  1082. 1082
  1083. 1083
  1084. 1084
  1085. 1085
  1086. 1086
  1087. 1087
  1088. 1088
  1089. 1089
  1090. 1090
  1091. 1091
  1092. 1092
  1093. 1093
  1094. 1094
  1095. 1095
  1096. 1096
  1097. 1097
  1098. 1098
  1099. 1099
  1100. 1100
  1101. 1101
  1102. 1102
  1103. 1103
  1104. 1104
  1105. 1105
  1106. 1106
  1107. 1107
  1108. 1108
  1109. 1109
  1110. 1110
  1111. 1111
  1112. 1112
  1113. 1113
  1114. 1114
  1115. 1115
  1116. 1116
  1117. 1117
  1118. 1118
  1119. 1119
  1120. 1120
  1121. 1121
  1122. 1122
  1123. 1123
  1124. 1124
  1125. 1125
  1126. 1126
  1127. 1127
  1128. 1128
  1129. 1129
  1130. 1130
  1131. 1131
  1132. 1132
  1133. 1133
  1134. 1134
  1135. 1135
  1136. 1136
  1137. 1137
  1138. 1138
  1139. 1139
  1140. 1140
  1141. 1141
  1142. 1142
  1143. 1143
  1144. 1144
  1145. 1145
  1146. 1146
  1147. 1147
  1148. 1148
  1149. 1149
  1150. 1150
  1151. 1151
  1152. 1152
  1153. 1153
  1154. 1154
  1155. 1155
  1156. 1156
  1157. 1157
  1158. 1158
  1159. 1159
  1160. 1160
  1161. 1161
  1162. 1162
  1163. 1163
  1164. 1164
  1165. 1165
  1166. 1166
  1167. 1167
  1168. 1168
  1169. 1169
  1170. 1170
  1171. 1171
  1172. 1172
  1173. 1173
  1174. 1174
  1175. 1175
  1176. 1176
  1177. 1177
  1178. 1178
  1179. 1179
  1180. 1180
  1181. 1181
  1182. 1182
  1183. 1183
  1184. 1184
  1185. 1185
  1186. 1186
  1187. 1187
  1188. 1188
  1189. 1189
  1190. 1190
  1191. 1191
  1192. 1192
  1193. 1193
  1194. 1194
  1195. 1195
  1196. 1196
  1197. 1197
  1198. 1198
  1199. 1199
  1200. 1200
  1201. 1201
  1202. 1202
  1203. 1203
  1204. 1204
  1205. 1205
  1206. 1206
  1207. 1207
  1208. 1208
  1209. 1209
  1210. 1210
  1211. 1211
  1212. 1212
  1213. 1213
  1214. 1214
  1215. 1215
  1216. 1216
  1217. 1217
  1218. 1218
  1219. 1219
  1220. 1220
  1221. 1221
  1222. 1222
  1223. 1223
  1224. 1224
  1225. 1225
  1226. 1226
  1227. 1227
  1228. 1228
  1229. 1229
  1230. 1230
  1231. 1231
  1232. 1232
  1233. 1233
  1234. 1234
  1235. 1235
  1236. 1236
  1237. 1237
  1238. 1238
  1239. 1239
  1240. 1240
  1241. 1241
  1242. 1242
  1243. 1243
  1244. 1244
  1245. 1245
  1246. 1246
  1247. 1247
  1248. 1248
  1249. 1249
  1250. 1250
  1251. 1251
  1252. 1252
  1253. 1253
  1254. 1254
  1255. 1255
  1256. 1256
  1257. 1257
  1258. 1258
  1259. 1259
  1260. 1260
  1261. 1261
  1262. 1262
  1263. 1263
  1264. 1264
  1265. 1265