1. Science

    Which of the following contain water that is easily available for human use? (more than one answer) Icecaps & glaciers - 76% of fresh water Shallow Groundwater- 12% of fresh water Deep Groundwater - 11% of fresh water Lakes & Rivers - 0.34% of fresh water

    asked by Anya on January 15, 2010
  2. ChemII

    A saline solution is 0.9% NaCl. What masses of NaCl and water would be required to prepare 50. L of this saline solution? Assume that the density of water is 1.000g/mL and that the NaCl does not add to the volume of the solution.

    asked by Eric on January 10, 2011
  3. physics

    1. You allow a gas to expand freely from volume V to volume 2V. Later you allow the gas to expand freely from volume 2V to volume 3V. Is the net entropy change for these two expansions greater than, less than, or equal to the entropy change that would

    asked by chx on January 23, 2012
  4. thermodynamics

    You allow a gas to expand freely from volume V to volume 2V. Later you allow the gas to expand freely from volume 2V to volume 3V. Is the net entropy change for these two expansions greater than, less than, or equal to the entropy change that would occur

    asked by chx on January 23, 2012
  5. physics

    Two identical containers are open at the top and are connected at the bottom via a tube of negligible volume and a valve which is closed. Both containers are filled initially to the same height of 1.00 m, one with water, the other with mercury, as the

    asked by joseph on December 4, 2010
  6. physics

    Two identical containers are open at the top and are connected at the bottom via a tube of negligible volume and a valve which is closed. Both containers are filled initially to the same height of 1.00 m, one with water, the other with mercury, as the

    asked by maria on December 6, 2010
  7. chemistry

    2. 0.300 kilogram chloroform(chlorine calcium3)and 21.0grams eucalyptol(carbon10 hydrogen18 oxygen 3. what is the concentration of a solution of sodium chlorine water containing 1.170grams solute in 100moles solution 4, what is the % by volume of a

    asked by juzen on September 14, 2010
  8. Physics

    A 10cm times 10cm times 10cm wood block with a density of 700kg/m^{3} floats in water. What is the distance from the top of the block to the water if the water is fresh? weight= density*volume*g weight=700*(10^-3)*9.81 weight=3418.877985

    asked by ana on November 17, 2009
  9. Chemistry

    Determine the atomic weight of X in the following compounds a)8g XH4 occupy 44.8L volume at 237C and 380 mmHg pressure b)1.92g of X3 occupis a volume of 574 ml at 77C and 2 atm c)A O.326 gram of gas,C3X4 has a volume of 250 ml at100C and 76 cmHg d)A 3.12

    asked by faisal on March 11, 2012
  10. physics grade 11

    1) In 2011, the total of all residential customers in Halton Region used 54 540 000 m3 of water. Halton Region has a population of around 500 000 people and Milton (part of Halton Region) has a population of around 85 000 people. Assuming all people in

    asked by sara on November 16, 2014
  11. Home Economics

    Produced from a blend of cheeses and America's most popular cheese Surely the answers to all these questions are in your textbook or in your notes from classes. (You do take notes in class, right?) If all else fails, put your main keywords into the search

    asked by Liz on October 19, 2006
  12. Science

    A family is planning to build a raised planting area using a blend of peat moss, mulch, and a rich organic soil in which to grow the plants. they have been told first to place on the ground a layer of material that will allow for a proper drainage each

    asked by Jen on September 21, 2016
  13. ChemistryDrBob222

    Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in lead storage

    asked by Kevin on January 13, 2011
  14. Chemistry

    In TDS experiment , the mass of the empty beaker was 25.683g , and the mass of the beaker after water evaporated 25.687 g , if the volume of the sample 50 ml , then the TDS of the water sample is ?

    asked by Mariam on April 20, 2014
  15. Physics

    A heat engine carries 2.60 mol of an ideal monatomic gas around the cycle shown in the figure. Process 1-2 takes place at constant volume and takes the gas from 300 K to 600 K, process 2-3 is adiabatic and takes the gas from 600 K to 455 K, and process 3-1

    asked by Anonymous on April 20, 2015
  16. chemistry

    A volume of 115 mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. If the final temperature of the system is 21.40 ∘C , what is the mass of the steel bar? Use the following values: specific

    asked by myah on October 19, 2016
  17. Physics

    Water flows under pressure from one pipe into a second pipe having half the diameter. The volume flow rate in the narrow pipe is ________ that in the wide pipe, and the speed of the water in the narrow pipe is _______ that in the wide pipe

    asked by Amity on February 4, 2011
  18. Chemistry

    A sample of gas occupies a volume of 63.1 mL. As it expands, it does 130.4 J of work on its surroundings at a constant pressure of 783 torr. What is the final volume of the gas? I know that P= 1.03 ATM when converted. I think I'm supposed to use the

    asked by Anonymous on January 31, 2013
  19. physics

    Water is flowing in a pipe with a circular cross-section area ,and at all point the water completely fills the pipe.At point 1 ,the cross sectiona are of pipe is 0.070 meter square and the fluid velocity is 3.50 meter per second. a.) what is the fluid

    asked by cathrena on January 10, 2017
  20. PHYSICS - PLEASE HELP

    Converting sunlight to electricity with solar cells has an efficiency of 15%. It's possible to achieve a higher efficiency (though currently at higher cost) by using concentrated sunlight as the hot reservoir of a heat engine. Each dish in the figure

    asked by Anonymous on December 4, 2012
  21. Chemistry 12

    Hi, I did the acid-base titration lab with HCl and 0.5M NaOH. I need to calculate the moles of NaOH from molarity of NaOH and the average volume used. My English isn't good but is it asking me to find the moles of NaOH using the molarity of NaOH and the

    asked by Kim on June 3, 2015
  22. Chemistry

    when 0.20 mole HF is dissolved in water to a volume of 1.00 L, 5.8% of the HF dissociates to form F- (aq). What is the equilibrium constant for the reaction ? HF(aq) + H2O (I) ----- F- (aq)+H3O+(aq)

    asked by Elmali on April 5, 2012
  23. science

    the volume of 50gram of a substance is 20centimetercube if the density of water is 1gram/centicentimetercube will the object float or sink

    asked by rahul sharma on October 26, 2016
  24. Physics

    Suppose a cube that measures 0.020 m on each side were made of water. Find its volume, mass, and weight.

    asked by May on March 9, 2011
  25. Physics

    A 70-kg ancient statue lies in the bottom of the sea. It’s volume is 3.0 x 10 4 cm 3 How . much force is needed to lift it? (Use g=10 m/s 2 and the density of water is 1.0 x 10 3 kg/m 3

    asked by Force on February 11, 2011
  26. Chemistry

    What volume of distilled water should be added to 400cm3 of 2.0mol/dm 3 H2SO4 to obtain 0.20mol/dm3 of solution

    asked by Joy on August 2, 2018
  27. Chemistry

    If I have storage tank containing 3.8 X 10E5 liters of water that is contaminated with NaOH and has a pH of 10.82. What volume of 0.1 M HCl is required to bring the pH= 7.0?

    asked by Nicole on June 21, 2012
  28. 11th grade

    If the volume of water produced during the reaction doubled, what would happen to the ratio of hydrogen to oxygen in the following equation: 2 H2+ O2 --> 2 H2O

    asked by bernice on November 29, 2010
  29. AP Chemistry

    What volume of water was added to the 350 mL of NaOH solution? Assume volumes are additive. Answer in units of mL

    asked by Gabriella on September 11, 2013
  30. chemistry

    An old bottle of 12.3 M hydrochloric acid has only 33 mL left in it. What is the HCl concentration if enough water is added so that the final volume is 513 mL?

    asked by masin on November 29, 2010
  31. Science

    Two students discover that 500g of water occupies a volume of 50mL. Is this result correct? Explain your answer.

    asked by Anonymous on March 22, 2017
  32. chemistry

    what volume of physiological saline solution (0.90% by weight NaCl, in water) would give you a gram of salt when evaporated?

    asked by jemmie on January 18, 2011
  33. chemistry

    What volume of water was added to the 350 mL of NaOH solution? Assume volumes are additive. Answer in units of mL

    asked by cheri on September 19, 2012
  34. organic chemistry

    What volume of physiological saline solution (90% by weight NaCl, in water) would give you a gram of salt when evaporated?

    asked by tina on January 23, 2011
  35. Chemistry! Please Help!

    What mass of propanoic acid, CH3CH2COOH, pKa= 4.87, should be dissolved in water to 2.00L volume in order to produce a pH of 2.50? THANKS! -J

    asked by Jude on February 13, 2009
  36. Chemistry

    If 5 ml of sulphuric acid is diluted to 135 ml of water, what is the volume and concentration of sodium hydroxide to neutralize the solution?

    asked by Rachelle on May 8, 2018
  37. Chemistry!! Please Help!

    What mass of propanoic acid, CH3CH2COOH, pKa= 4.87, should be dissolved in water to 2.00L volume in order to produce a pH of 2.50? THANKS! -J

    asked by Jude on February 12, 2009
  38. physics

    Describe briefly how the volume of a given mass of water changes when it is cooled from 7 ^0 C to 1^0 C use the terms increase, decrease and maximum or minimum

    asked by anil on October 4, 2011
  39. chemistry

    Molarity of the solution that results when 71.3 g silver nitrate is dissolved in enough water to give a final volume of 757 mL.

    asked by Anonymous on February 14, 2011
  40. chemistry

    Molarity of the solution that results when 71.3 g silver nitrate is dissolved in enough water to give a final volume of 757 mL.

    asked by Anonymous on February 14, 2011
  41. Science

    Two students discover that 500g of water occupies a volume of 50mL. Is this result correct? Explain your answer.

    asked by Anonymous on March 21, 2017
  42. Chemistry

    when 0.20 mole HF is dissolved in water to a volume of 1.00 L, 5.8% of the HF dissociates to form F- (aq). What is the equilibrium constant for the reaction ? HF(aq) +H2O(l) ------ F- (aq) +H3O+ (aq)

    asked by emily on April 5, 2012
  43. physics

    Describe briefly how the volume of a given mass of water changes when it is cooled from 7 ^0 C to 1^0 C use the terms increase, decrease and maximum or minimum

    asked by anil on October 4, 2011
  44. Inorganic Chemistry

    I messed up on my titration: filled part of the burette with a supersaturated solution of KHTar(2.073g...MM=188.18amu) dissolved in 150mL diH2O, instead of the 0.051M NaOH solution. I know it wasn't more than a few mL, but I noticed a huge difference in

    asked by Christina (PLZ HELP!!) on July 14, 2011
  45. Physics

    A helicopter carrying Dr. Evil takes off with a constant upward acceleration of 5.0 m/s2. Secret agent Austin Powers jumps on just as the helicopter lifts off the ground. After the two men struggle for 10.0 s, Powers shuts off the engine and steps out of

    asked by Ko on March 8, 2015
  46. Chemistry

    Help please? 1)A sample of propane gas occupies 625 cm3 at 20.0 °C and 750 torr. What is the final volume in cubic centimeters at -80.0 °C and 750 torr? 2)If oxygen gas is collected over water at 25 °C and 775 torr, what is the partial pressure of the

    asked by May on April 17, 2014
  47. Chem

    You have 25.00 mL of 3% by mass solution of hydrogen peroxide. Assume the density of this solution is 1.00 g/mL. If all of the hydrogen peroxide decomposes to water and oxygen according to the reaction below: 2H2O2 (aq) 2H2O (l) + O2 (g) What is the total

    asked by Blake on September 21, 2015
  48. Chemistry

    A piece of solid magnesium is reacted with hydrochloric acid to form hydrogen gas: Mg (s) + 2HCl (aq) ---> MgCl2 (aq) + H2 (g) What volume of hydrogen gas (in mL) is collected over water at 25 degrees Celsius by reaction of 0.450 g of Mg (AW= 24.3 g/mol)

    asked by Student on March 8, 2016
  49. Chemistry-DrBob222

    A piece of solid magnesium is reacted with hydrochloric acid to form hydrogen gas: Mg (s) + 2HCl (aq) ---> MgCl2 (aq) + H2 (g) What volume of hydrogen gas (in mL) is collected over water at 25 degrees Celsius by reaction of 0.450 g of Mg (AW= 24.3 g/mol)

    asked by Student on March 8, 2016
  50. Math<Please Help>

    A swimmin bath has verticle sides and the floor slopes uniformly so that, when the bath is full, the water is 1m deep at the shallow end and 4m deep at the other end. If the bath is 25m long and 12m wide, calculate the volume of the water in the bath when

    asked by Jnr John on July 21, 2013
  51. Prisms

    A swimmin bath has verticle sides and the floor slopes uniformly so that, when the bath is full, the water is 1m deep at the shallow end and 4m deep at the other end. If the bath is 25m long and 12m wide, calculate the volume of the water in the bath when

    asked by Jnr John on July 9, 2013
  52. science

    an you please solve the questions for me 1. 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

    asked by gift on March 27, 2014
  53. Chemistry

    I am having trouble getting this starting and figuring out the correct steps...the problem is Calculate the final concentration of the solution in each question 1) Water is added to 0.270 L of a 6.00M HCl solution to give a volume of 3.00 L (Express

    asked by TT on December 10, 2010
  54. Food Analysis

    1.If 0.5l of 5M solution of CU(NO3) is diluted to a volume of 0.80l by adding water, what is the molarity of the resulting diluted solution? 2.How many ml of water will be required to dilute 11ml of 0.45Macid solution to a molarity of 0.1M? 3.Calculate the

    asked by Sarah on March 8, 2011
  55. PHYSICS HELP

    a cube of wood with a density of 0.78g/cm^3 is 10cm on a side. When placed in the water what height will the block float above the surface? what am i doing wrong here: height= Desity of cube* volume of cube and devide by the density of water * area of the

    asked by PHYSICS HELP on November 14, 2007
  56. English

    Everyone knows that water is important. Who doesn’t like to drink a cool glass of water after a long day? But some people don’t seem to worry about polluting the local water supply. They should! I like water, and so should everyone else. What change

    asked by Fading on April 16, 2017
  57. Physics

    A light–rail commuter train draws 635 A of 640–V DC electricity when accelerating. What is its power consumption rate in kilowatts? (in kW) 406 kW You are correct. How long does it take to reach 30.0 m/s starting from rest if its loaded mass is

    asked by Ashton on September 14, 2014
  58. Chemistry

    Help needed with a calorimeter lab. I have to measure the enthalpy of a neutralization reaction between NaOH and HCl as well as find the concentration of NaOH the following ways. - using the mass and volume of NaOH - Using calorimetric data assuming no

    asked by Bibi on November 17, 2014
  59. physics(gas laws)

    Got a question 3. Given 325 ml of saturated gas at 760 mmHg and 25°C, what would be its volume if dry at the same pressure and temperature? I got confused when I read 'if dry' Does that mean I have to subtract something out of 760mmHg? And would I used

    asked by abby on January 28, 2008
  60. Pre-Calc

    A vehicle has an engine that is connected directly to a gear box. In the highest gear, a 2 inch radius gear is turning a 14 inch diameter gear. This gear is connected to the drive shaft. The drive shaft attaches to a wheel and a tire that measures 2 and

    asked by Caitlynn on September 14, 2016
  61. science

    how is a living thing and an automobile alike in carrying out life processes?

    asked by Faith on August 20, 2008
  62. Physical Science

    What is the kinectic energy in joules of a 500kg automobile traveling at 45km/hr?

    asked by Patience on March 28, 2012
  63. physics

    What is the momentum of an automobile (weight = 9800 N) when it is moving at 36 m/s to the south? magnitude

    asked by Gino on June 19, 2011
  64. Economics

    How does the automobile industry answer thr basic economic questions?

    asked by Aubrey on November 10, 2009
  65. physics

    an automobile travels at a uniform speed of 88 kph. how many metres does it travel in 1 second?

    asked by leyfushie on July 27, 2013
  66. physics

    What net force is needed to accelerate a 1.6 × 103kg automobile forward at 2.0 m/s2?

    asked by madison powell on March 6, 2012
  67. Physics

    What is the kinetic energy of an automobile with a mass of 1250 kg traveling at a speed of 11 m/s?

    asked by glenn on April 14, 2010
  68. Physics

    An automobile uniformly accelerates from rest at 15 ft/s2 for 6s. What is the fanal velocity in ft/s? v=d/t 15 *6= 90 90ft/s

    asked by RP on September 27, 2015
  69. chemistry

    What is the density of a sample of 65.0mL of automobile oil having a mass of 59.82g

    asked by tina sayers on October 1, 2012
  70. physics

    If the kinetic energy of an automobile triples because of a speed change, it momentum is ?

    asked by titu on April 21, 2015
  71. science

    Which component of the technological system is achieved when an automobile airbag inflates?

    asked by yaya on October 23, 2014
  72. Physics

    calculate the kinetic energy, in J, of a 1200kg automobile travelling at 36km/h

    asked by john on April 7, 2010
  73. Chemistry

    A 25.00 ml sample of a standard solution containing 1 g of CaCO3/L required 25.20 ml of EDTA to fully complex the Ca present. Calculate the volume of EDTA stoichiometrically equivalent to 1.0 mg of CaCO3. From the volume of EDTA required in titrating the

    asked by Anonymous on March 15, 2010
  74. physics

    i need help figuring out what formaula to use for finding the final velocity of a rocket. Model rocket engines are sized by thrust, thrust duration, and total impulse, among other characteristics. A size C5 model rocket engine has an average thrust of 5.26

    asked by sonia on October 8, 2008
  75. Chemistry

    A portable electric water heater transfers 255 watts (W of power to 5.5 L of water, where 1 W=1J/s.How much time (in minutes) will it take for the water heater to heat the 5.5 L of water from 27∘C to 49∘C? (Assume that the water has a density of 1.0

    asked by Lisa on September 12, 2014
  76. chemistry

    Exactly 1.0 L of hydrogen gas (H2) is collected over water at 292 K under a total pressure of 152 torr. If the vapour pressure of water is 16.5 torr at this temperature, what is the mole fraction of hydrogen in the gas sample? Volume of CO2 = L Mole

    asked by nath on December 8, 2011
  77. Chemistry 32

    HCI (aq) is a strong acid. suppose you dissolved 0.0365 grams of HCI in water to give a final volume of 10.0 mL. what is the pH of this final solution. The molar mass of HCU is 36.5g /mole and the molar mass of water is 18.0g/mole

    asked by jen on March 13, 2014
  78. Math

    The portion of a swimming pool that is below the full water line measures 12 feet by 30 feet by 6 feet deep. What is the volume of water in the swimming pool when it is full, expressed in cubic yards? (1 cu yd =27 cu ft) a.60 cu yd b. 72 cu yd c.74.6 cu yd

    asked by Holly on August 21, 2012
  79. AP Chem

    When dealing with gasses, do you subtract the pressure of water vapor every time it is in the equation? I'm confused on when you subtract it. Such as this problem... NH4NO2(s) -> 2H2O(g) + N2(g) How many grams of ammonium nitrate must have reacted if 3.75

    asked by Anna on November 19, 2008
  80. physics

    What are the temperatures for freezing water and boiling water on the Kelvin temperature scale? a)273K for freezing water; 373K for boiling water b)0K for freezing water; 100K for boiling water c)32K for freezing water; 212K for boiling water

    asked by Kristie on March 29, 2012
  81. chemisry

    Why does luis place 3 cups of water without any solute in the freezer? a. if some water spills, he will have extra b. the plain water is the control group c. he wants to know how long water takes to freeze d. the 3 cups of water are unnecessary to the

    asked by mary1111 on February 26, 2010
  82. AP Physics B (chemistry bit)

    I think I'm doing this wrong In an internal combustion engine, air at atmospheric pressure and a temperature of about 20 degrees celcius is compressed in the cylinder by a piston to 1/9 of its original volume (compression ratio = 9.0). Estimate the

    asked by AP Physics B (chemistry bit) on November 15, 2009
  83. Chemistry

    Before a trip from New York to Boston, the pressure in the automobile tire is 2.1 atm at 280 K. At the end of the trip, the pressure gauge reads 1.88 atm. What is the new Celsius temperature of the air inside the tire?(Assume tires with constant volume).

    asked by Linda on March 9, 2014
  84. Chemistry

    In the reaction between aluminum and hydrochloric acid, how many moles of hydrogen gas would be liberated when 3.612E-2 grams of aluminum are treated with excess hydrochloric acid? Moles of hydrogen gas liberated = mol The atmospheric pressure was measured

    asked by Carrie on November 4, 2011
  85. Chemistry

    In the reaction between aluminum and hydrochloric acid, how many moles of hydrogen gas would be liberated when 3.612E-2 grams of aluminum are treated with excess hydrochloric acid? Moles of hydrogen gas liberated = mol The atmospheric pressure was measured

    asked by Carrie on November 5, 2011
  86. Chemistry

    What would the molarity of 50 mL of 3% hydrogen peroxide be if it's volume/volume? I know how to do weight/volume but not this, someone help?

    asked by Anonymous on October 3, 2010
  87. chemistry

    Hi, Can anyone suggest a protocol for preparing 1 Litre ammonical solution (pH 7.8, NH4-N, 3000 mg/L) from NH4Cl and NaOH? I have worked out that I need 10.7g NH4CL and 0.45 g NaOH -is this correct? I am assuming that 1st step is to prepare 0.45 g NaoH in

    asked by niko on March 17, 2016
  88. Biology

    How can I describe the following things about water in sketches or drawings? please give me ideas 1.High heat capacity 2.High heat of vaporization 3.Water is a solvent 4.Water molecules are cohesive and adhesive 5. Frozen water is less dense than liquid

    asked by Kylie on February 10, 2016
  89. physicscalculus

    An automobile with a mass of 1310 kg has 3.10 m between the front and rear axles. Its center of gravity is located 1.78 m behind the front axle. The automobile is on level ground. (a) Determine the magnitude of the force from the ground on each front wheel

    asked by Jane on December 13, 2008
  90. 5th grade LA

    Can you check these? Find the prepositional phrase in each sentence. Circle the preposition, and underline the object of the preposition. 26. After it was fixed, he thought about how to make it work better. prep: about obj: ? 27. The engine needed a lot of

    asked by Jared on November 8, 2017
  91. calculus

    An automobile computer gives a digital readout of fuel consumption in gallons per hous. During a trip, a passenger recorded the fuel consumption every 5 minutes for a full hour of travel. time: 0 / gal/h: 2.5 time: 5 / gal/h: 2.4 time: 10 / gal/h: 2.3

    asked by Anonymous on October 26, 2007
  92. chem

    drbob you helped me with this problem the other day but i have a question. -i changed 500mL of ethanol to grams then to mol. i was wondering if i then used 1000mL or 500mL of water to change to kg? The "proof" of an alcoholic beverage is twice the volume

    asked by alicia on February 13, 2008
  93. Math

    The Coffee Counter charges ​$11.00 per pound for Kenyan French Roast coffee and ​$15.00 per pound for Sumatran coffee. How much of each type should be used to make aa 24 pound blend that sells for ​$13.00 per​ pound?

    asked by Erin on January 22, 2018
  94. Chemistry

    A 19.9mL volume of a hydrochloric acid solution reacts completely with a solid sample of magnesium carbonate, producing 183mL of CO2 that is collected over water at 24.0 degrees C and 738 torr total pressure. The vapor pressure for water at 24.0 degrees C

    asked by Michelle on April 18, 2013
  95. Automotive engine parts and operation

    plz help me w/ the answers i have n tell me if i'm wrong. 1. An automotive engine's camshaft rotates at A. the same speed as the crankshaft B. one-quarter the speed of the crankshaft C. one-half the speed of the crankshaft D. twice the speed of the

    asked by Nessa on December 4, 2009
  96. Physics

    What is the volume of water at 95 degrees Celcius if at 5 degrees Celcius the water is 5.56L?

    asked by Scott on March 12, 2015
  97. Chemistry- Drbob-help#3

    I still need help with #3 I'm not sure how I got 1.14M. I have tried to do the problem over, but I not coming up with my original answer of 1.14M. Somehow I am missing a step. Please show work for the 1.14M Thanks Question#9 reads exactly as written. A

    asked by Paul on February 10, 2011
  98. Calculus

    The tank shown is full of water. Given that water weighs 62.5 lb/ft3, find the work required to pump the water out of the tank. The tank shown is a hemisphere with r = 5 ft. The water is to be pumped out at the top. First I solved for ri, ri / (5 - xi) = 5

    asked by COFFEE on June 23, 2007
  99. College Chemistry

    When determining the vapor pressure of water, the bubble volume is 1.2mL at 5 degrees celsius. -How many moles of dry air were in the bubble? (assume 1 atm) -If the bubble volume is 8.6mL at 75 degrees celsius, what is the partial pressure of the dry air

    asked by Abbey on April 18, 2013
  100. College Chemistry

    When determining the vapor pressure of water, the bubble volume is 1.2mL at 5 degrees celsius. -How many moles of dry air were in the bubble? (assume 1 atm) -If the bubble volume is 8.6mL at 75 degrees celsius, what is the partial pressure of the dry air

    asked by Abbey on April 18, 2013