1. Chemistry

    calculate the change in ph for 1l of buffer solution containing NH4OH and NH4Cl upon addition of 1) 0.02 moles of HCl 2) 0.02 moles of NaOH I got the initial pH as 9.2504 But now Im stuck cus I dunno what happens when we add HCl and NaOH? Please help! :)

    asked by Isura on February 22, 2017
  2. Chemistry

    given the balanced equation representing a reaction: 4NH3+5O2-->4NO+6H2O what is the minimum number of moles of O2 that are needed to completely react with 16 moles of NH3? (1)16 mol (2)20.mol (3)64 mol (4)80. mol i think its 2 but im not sure.

    asked by Destinee on January 2, 2011
  3. chemistry

    in a blast furnace, Iron(III) oxide is used to produce iron by the following unbalanced reaction....Fe2O3(s) + CO(g)-->Fe(s)+ CO2(g) if 4.00 kg Fe2O3 are available to react how many moles of CO are needed? how many moles of each product are formed? help

    asked by lynda smith on November 5, 2009
  4. chem

    how would i figure out this question? assume that 5.60 L of H2 at STP reacts with CuO according to the equation: CuO+H2 yields Cu+H2O a. how many moles of H2 react? b. how many moles of Cu are produced? c. how many grams of Cu are produced? i have no clue

    asked by Alicia on May 27, 2008
  5. bio chem

    Explain how to prepare 1L of a buffer at pH 7.4 using 1M hypochlorous acid (Ka = 3.5 x 10-8) and a 1 M NaOH solution. Indicate the volume of hypochlorous acid and sodium hydroxide to use. pH = pKa + log ([A-]/[HA]) Ka= [H+][A-]/[HA] Molarity = moles/L

    asked by Anonymous on March 12, 2013
  6. Physics

    Continuously running exhaust hoods in a university chemistry building keep the inside air pressure slightly lower than outside. A student notices that a 175 N force is necessary to start opening a 1.2 m by 2.3 m door. The door is hinged on one of its 2.3 m

    asked by Constance on December 4, 2012
  7. algebra

    The volume V of a gas varies inversely as the pressure P on it. If the volume is 250 cm3 under a pressure of 35 kg/cm3, solve for the pressure applied to have a volume of 180 cm3. Be sure to define your variables, find your constant variable, construct

    asked by Anonymous on April 30, 2017
  8. chemistry

    nitrogen gas reacts with hydrogen gas to form ammonia. The nitrogen gas is in a closed 500.0 mL flask at 751 mm HG connected to a 1.25 L flask containing the hydrogen gas at 1.21 atm pressure. Both flasks are kept at 37C. if the stopcock is opened and the

    asked by anonymous on April 10, 2013
  9. Health

    Marion prides herself on being a good defender on the basketball court. She can block shots easily. Her coach says that to be a better player for the team, she needs to improve her power for specific skills. Marion can improve her power in basketball by ·

    asked by Steve on December 31, 2013
  10. Chemistry

    A 559.0 mL cylinder containing C5H12 at a pressure of 304.0 torr is connected by a valve to 610.0 mL cylinder containing CO2 at 532.0 torr pressure. Calculate the partial pressure (atm) of CO2 when the valve is opened.

    asked by Matty on April 12, 2011
  11. science

    calculate the depth of salt water lake,if the pressure at its base is 16 times the atmospheric pressure.the density of salt water lake is 1,050kg m-3 and acceleration due to gravity is 10 ms-2.the atmospheric pressure is 10N cm-2

    asked by erekha on November 21, 2015
  12. General Chemistry II

    Also, not sure if I did this correctly: Compute the solubility in moles/ liter for each sample titrated. 2.3 g KHTar in water. 2.3/18= .128 S= (.128/0.05)= 2.56 moles/ liter Is this correct?

    asked by Joe on April 10, 2013
  13. chemistry

    A hot air balloon is filled with 15 moles helium gas and 5 moles nitrogen gas. What is the volume of the balloon at 1.01 atm and 300 K?

    asked by Roger on November 14, 2018
  14. AP Chem

    A sample of 0.71 moles of a metal M reacts completely with excess fluorine to form 44.24 grams of MF2. How many moles of F are in the sample of MF2 that forms?

    asked by Nihar on June 18, 2012
  15. chem

    I have a problem i don't get... H3PO4+3NaOH -> 3H2O+Na3PO4 How many moles of Na3PO4 will be produced from 1.7 moles of NaOH in the presence of excess H3PO4?

    asked by Bob on January 18, 2009
  16. Chemistry

    Molar Volume(1mole=24.4L at STP) Question: Convert 40mL to moles I converted 40mL to .04L *Need help in coverting .04L to moles

    asked by JOY on March 19, 2013
  17. chemistry

    Balance the following chemical reaction and determine the number of moles of HI produced when 2.33 moles of H2(g) are consumed in the following chemical reaction: ___H2(g) + __I2(g) -> ___HI (g)

    asked by anon on February 19, 2017
  18. Chemistry

    A sample of 0.43 moles of a metal M reacts completely with excess chlorine to form 18.23 grams of MCl. How many moles of Cl are in the sample of MCl that forms?

    asked by D on July 30, 2011
  19. Chemistry

    How many moles of carbon monoxide gas are produced when 2.88 moles of SnO2(s) react with excess carbon according to the equation below? SnO2(s) + 2C(s) --> Sn(s) + 2CO(g) How do you figure all of this out?

    asked by Lauren K. on December 8, 2010
  20. science

    Ca3(PO4)2 + 2H2SO4 = 2CASO4 + Ca(H2PO4)2 How many moles of CaSO4 can be produced by the reaction of 0.39 moles of Ca3(PO4)2 with excess H2 SO4?

    asked by neil on October 24, 2010
  21. Chem

    So I did a titration at school the other day and one of the questions is asking us to calculate the molarity of a solution but I don't know the # of moles of the solute. I know to calculate the molarity=# moles/ liters.

    asked by Anonymous on January 25, 2014
  22. General Chemistry

    Given 115 grams of Na2SO4 find: a. the # of moles in sodium sulfate b. the # of moles in sodium ions Please explain all work and fully explain where each # came from. Thanks.

    asked by Beth on August 24, 2010
  23. Chemistry

    For the following reaction: Al2(SO4)3 + 6NaOH = 2Al(OH)3 + 3Na2SO4 How many moles of Na2SO4 can be made with 3.2 moles of NaOH and excess Al2(SO4)3?

    asked by Carrie on November 14, 2011
  24. CHEM! (SCIENCE) NEED HELP

    Determine the moles of aluminum acetate,AL(C2H3O2)3,that can be made if you do this reaction with 12 moles of acetic acid (C2H3O2H) C2H3O2H+AL(OH)3->AL(C2H3O2)3+3H2O

    asked by tyneisha on January 24, 2013
  25. chemistry

    According to the following reaction, how many moles of oxygen gas are necessary to form 0.543 moles water? hydrogen sulfide (g) + oxygen (g) water (l) + sulfur dioxide (g)

    asked by bessie on October 30, 2011
  26. Physics

    The atmosphere of Mars exerts a pressure of only 600 Pa on the surface and has a density of only 0.02 kg/m3. (a) What is the thickness of the Martian atmosphere, assuming the boundary between atmosphere and outer space to be the point where atmospheric

    asked by mymi on November 7, 2011
  27. stats.help!

    Each year, 64 college basketball teams compete in the NCAA tournament . Sandbox . com recently offered a prize of $10 million to anyone who could correctly pick the winner in each of the tournament games. A. How many games are required to get one

    asked by Jen on March 26, 2017
  28. last physics problem.

    At 25.0 m below the surface of the sea(density=1025 kg/m^3) where the temperature is 5.00 C, a diver exhales an air bubble having a volume of 1.00 cm^3. If the surface temperature of the sea is 20.0 C, what is the volume of the bubble just before it breaks

    asked by jean on April 19, 2007
  29. science

    A researcher put 10.0 moles of N2O into a 2-L container at some temperature where it decomposes according to the following: N2O = 2N2+ O2. At equilibrium 2.20 moles of N2O remain. Calculate the Kc for the reaction. How am I supposed to fill in the ICE

    asked by Laury on April 6, 2017
  30. Chemistry

    If the same solute is dissolved in two different solvents to the same concentration and the same temperature, the osmotic pressure ____ My answer & reason: solution A has a smaller molecular weight and therefore, a larger Molarity and higher osmotic

    asked by Anonymous on February 25, 2009
  31. math

    A cylinder has a diameter of 80 cm and a length of 45 cm. Another cylinder has the same volume but is 80cm long. What is the diameter of the longer cylinder?

    asked by priya on February 21, 2011
  32. Chemsitry

    A student reacts 0.506 grams of aluminum with excess KOH and H2O according to reaction one from the lab manual.   2Al + 2KOH +6H2O ---> 2K[Al(OH)4]+3H2 Enter your answers in numerical format. How many moles of aluminum was reacted? How many moles of

    asked by Jose on October 28, 2017
  33. physics

    A sample of gas at P = 1123 Pa, V = 1.41 L, and T = 291 K is confined in a cylinder a) Find the new pressure if the volume is reduced to half of the original volume at the same temperature. b) If the temperature is raised to 391 K in the process of part

    asked by maria on December 27, 2011
  34. SCIENCE

    An oxide coated silicon wafer is patterned (circle of 30 µm diameter) using photolithography and is dipped in HF. After 2 minutes dip, the wafer is examined. The depth of pattern is 1.3 µm and diameter of pattern is 32 µm. Determine the anisotropy of

    asked by MEMS on August 27, 2018
  35. physics

    Tires on a car have a diameter of 2 ft and are warranted for 60 000 miles. a) Determine the angle (in radians) through which one of these tires will rotate during the warranty period. b) How m,any revolutions of the tire are equivalent to your answer in,

    asked by 7876 on February 24, 2015
  36. math

    18.Ms. Jones has a garden plot that measures 40ftX 20ft If she increases the garden by 4 ft on each side, by what percent has she increased the plot? 19. A cylindrical can of cleaner holds 1 L of liquid. What is its height if the diameter of the base is 10

    asked by Anonymous on August 28, 2010
  37. Math

    Mr.Ferris discovered in his 2013 copy of the world records book that the worlds largest pizza measured 5.83 feet in diameter. A regular pizza measures 0.6 feet in diameter. How much greater is the area of the larger rice cake?

    asked by Erin on March 9, 2014
  38. chemistry

    A particular air sample at 1 atm pressure has a density of approximately 1.3 g/liter and contains SO2 at a concentration of 25 µg/m3 . What is this concentration in terms of: a) Parts per million (mass SO2 per 106 units mass of air) b) Moles SO2 per 106

    asked by Mensah on October 16, 2015
  39. Chemistry

    If the pressure of 8.0 L of nitrogen gas in a flexible container is decreased to one-fifth of its orginal pressure(at constat teperature)' the volume will now be ?

    asked by Devin Boutte on August 26, 2011
  40. Science

    A constant volume of O2 gas is heated from 140C to 216C. The final pressure is 22.3 atm. What was the initial pressure?

    asked by Chad on April 13, 2016
  41. Physics

    How much pressure is required to crack an egg under water Is there like a table I could look at that has values for how much pressure things can withstand before cracking

    asked by Physics on October 24, 2009
  42. Chemistry

    Determine the final pressure of a gas that has initial pressure of 1.00 atm and is heated from 20.0 C to 30.0 C in a container with a fixed volume.

    asked by WeiWei on May 23, 2014
  43. St Teresas College

    Subject:Chemistry What is the difference between seawater and pure water in terms of osmotic pressure and vapour pressure?

    asked by Sulu on September 26, 2015
  44. chemistry

    A 10.6 liter at 25 C and 3.21 atm inside pressure became 12.8 liters at 221 C after driving in summer. What is the pressure in the hot tire?

    asked by NONO on November 20, 2011
  45. chemistry

    130cm3 of a gas excarts a pressure 750mmhg . calculate it pressure if its volume is increase to 150cm3 at 35oc

    asked by whiskey on August 9, 2017
  46. chemistry

    Calculate the partial pressure of 24 g methane, 48 g of oxygen and 56 g of nitrogen contained in a 25L container. What is the total pressure.

    asked by josh on September 11, 2009
  47. Physics

    Taking a decibel to be an increase in pressure of 12.2%, by what factor has the pressure changed when the sound level has fallen by 8.00 decibels?

    asked by Steeve on November 15, 2012
  48. Chemistry

    A sample of hydrogen exerts a pressure of 0.418 atm at 57.0° C. The gas is heated to 88.0° C at constant volume. What will its new pressure be?

    asked by Sam on February 19, 2019
  49. Physics II

    find the velocity of escape of water through a small opening in a broiler where the pressure is 10^6 Pa above atmospheric pressure, assumed h1=h2 and v1=0

    asked by Precious on February 1, 2017
  50. Chemistry

    You begin with 100mL of air at 1 atm of pressure. How would you change the pressure in your machine to accomplish you goal of 500mL?

    asked by Dorothy on February 11, 2011
  51. AP Chem

    Calculate the partial pressure of 4.0 g methane when mixed with 16.0 g oxygen. The total pressure of both gases is 600. torr.

    asked by Ashlee on November 1, 2015
  52. Physicis

    A mass of gas occupies 20cm at5c and 760mmhg pressure what is its volume at30c and800mmhg pressure .

    asked by Chidera on April 23, 2016
  53. air mass movement

    Fill in the blanks...Air masses MOVE from areas of__________ pressure to ares of ______________ pressure.

    asked by Matt on May 29, 2008
  54. chemistry

    as the pressure increases, the volume______, and as the pressure decreases the volume ________. fill in the blanks is it decrease then increse

    asked by melissa on May 13, 2009
  55. Algebra

    Boyle's Law says that the volume of a gas varies inversely with the pressure. When the volume of a certain gas is 5 liters, the pressure is 158 kPa (kilopascals). What is the volume when the pressure is 395 kPa?

    asked by Anonymous on March 8, 2016
  56. Chemistry

    What is the vapor pressure at 23 degree C of a solution of 1.20g of naphthalene, C10H8 in 25.6 g of benzene, C6H6? The vapor pressure of naphthalene can be neglected. Calculate the vapor-pressure lowering the solution

    asked by Lauren on February 7, 2008
  57. Physics

    Bioluminescence Some species of dinoflagellate (a type of unicellular plankton) can produce light as the result of biochemical reactions within the cell. This light is an example of bioluminescence. It is found that bioluminescence in dinoflagellates can

    asked by Brady on April 17, 2014
  58. physical science

    if the absolute pressure of gas is 550.280kPa , its gage pressure is ?

    asked by kathy on February 8, 2009
  59. chemistry

    the air in a 4.00L tank has pressure of 1.70atm what is the pressure in atmospheres 1L

    asked by linda on May 1, 2016
  60. chemistry

    The pressure in an automobile tire is 1.85 atm at 27.0°C. What will be the pressure if the temperature increases to 38.0°C?

    asked by Leah on March 20, 2014
  61. chemistry

    The pressure in a 2.5 L container is 755.6 torr. If the volume increases to 3.6 L, what is the new pressure?

    asked by Randell Shifflet on April 18, 2013
  62. Chemistry

    What is the pressure of a fixed volume of hydrogen gas at 38.8°C if it has a pressure of 1.36 atm at 15.0°C?

    asked by tyrell on April 1, 2017
  63. chemistry

    A gas occupies 10 liters at a pressure of 40.0 mm hg. What is the volume when the pressure is increased to 60.0 mm hg

    asked by jr on March 20, 2012
  64. Chem

    what would be the partial pressure of N2 gas over water at 22*C and 721 torr pressure

    asked by kary on November 29, 2010
  65. physics

    Given the atmospheric pressure is 10 5pa what is a gauge pressure of 0.55 mpa equal to?

    asked by shelly on March 30, 2014
  66. Fluid Mechanics

    What must the water pressure be to supply the second floor (18.0 ft/up) with a pressure of 50.0 lb/in² at that level?

    asked by Ben on October 27, 2014
  67. Chemistry..Please Help

    HENRY'S LAW I did the first one im not sure how to do the 2 and the 3rd question. 1. What is the Henry's law constant for CO2 at 20{C}? C=kP K=c/p = 3.70*10^-2/1.00atm= 0.037 2. What pressure is required to achieve a CO2 concentration of 6.00×10−2 at

    asked by Saira on May 29, 2009
  68. Chemistry

    A student performed an experiment to determine the molecular weight of a gaseous compound. Using the ideal gas law PV = nRT, and knowing the pressure, temperature, and volume of the vapor, the student calculated the number of moles of gas, n, to be 0.0443

    asked by Ericka on November 15, 2015
  69. Calculus

    A spherical snowball is melting so that its diameter is decreasing at rate of 0.1 cm/min. At what is the rate is the volume of the snowball changing when the diameter is 12 cm?

    asked by Joe on April 3, 2012
  70. Cal

    If a snowball melts so that its surface area decreases at a rate of 3 cm^2/min, find the rate at which the diameter decreases when the diameter is 8 cm.

    asked by Nykie on November 30, 2011
  71. Algebra

    The circumference of a circle is found by the formula C=pi(d) where d is the diameter of the circle. Does circumference vary directly as diameter? If so what is the constant of variation

    asked by M on October 14, 2014
  72. MATHS MONGU COLLEGE

    A cylinder whose volume is 386,000m3 has it's length 1.3 times its diameter. calculate the diameter of the cylinder given that the volume V = 3.142r2h.

    asked by barotseland network on February 27, 2013
  73. Physics II

    the velocity of water in a 4 cm diameter pipe is 2.0m/s.what is the velocity in a 2cm diameter pipe which connects with it,both pipes flowing full?

    asked by Precious on February 1, 2017
  74. Calculus

    At STP, 1.00 g of calcium is placed into an acidic solution, and 407 mL of hydrogen gas is collected. What is the ratio of moles of calcium consumed to moles of hydrogen produced? a)1.37:1.00 b)1.00:1.64 c)0.928:1.00 d) 0.500:1.00 Is the answer A, if so,

    asked by George on September 22, 2008
  75. Chemistry

    Based on the ratio of mean moles of O2/mol KClO3 what is the chemical equation for the reaction that occurred? Why? Is this conclusion in accord with the mass of the solid product that you obtained? Explain Moles of O2/mol KClO3 = 1.95x10^-2

    asked by John on March 27, 2017
  76. chemistry

    500.0 g of ammonia react with 51.0 moles of sulfuric acid to produce ammonium sulfate. How many moles of excess sulfuric acid are left over after the reaction is complete? 2 NH3 (aq) + H2SO4(aq) → (NH4)2SO4 (aq)

    asked by Anonymous on March 22, 2011
  77. Chemistry Honors

    When a Bunsen burner is ignited, it begins a combustion reaction of methane gas in the air. CH4 (g) + 2 O2 (g) CO2 (g) + 2 H2O (l) How many moles of water will be produced from the complete combustion of 4 moles of methane? Answer: 8

    asked by Amber M. on June 2, 2018
  78. Chemistry

    Propane gas is stored in a tank at a pressure of 15.0 atm at 22.0 °C. The tank can hold a pressure of 42.0 atm before bursting. During a fire the gas is heated to 600.0 °C. What is the gas pressure, and will the tank contain the gas without bursting? I

    asked by Drew on April 9, 2016
  79. Chemistry

    A sample of nitrogen gas was collected via water displacement. Since the nitrogen was collected via water displacement, the sample is saturated with water vapor. If the total pressure of the mixture at 21 °C is 1.16 atm, what is the partial pressure of

    asked by Leanna on December 9, 2015
  80. Chemistry

    A sample of nitrogen gas was collected via water displacement. Since the nitrogen was collected via water displacement, the sample is saturated with water vapor. If the total pressure of the mixture at 21 °C is 1.16 atm, what is the partial pressure of

    asked by Leanna on December 9, 2015
  81. chem

    A sample of H2(g) expands adiabatically and reversibly from a state 1 where p1 = 200000Pa,V1 = 0.002m3 and T1 = 300K to a state 2 where V2 = 0.004m3.Assume the gas to behave as an ideal gas calculate the final temperature and its pressure.Use the constant

    asked by kelvin on November 8, 2016
  82. heat of vapor pressure

    When a student plotted ln [vapor pressure of a gas] vs. inverse Kelvin temperature, she obtained a straight line with a slope equal to -9500 K. According to the Clausius Clapeyron equation, Hvap is ? kJ/mol. The vapor pressure is proportional to exp

    asked by yayhawknelson on January 18, 2007
  83. Chemistry

    2 KOH(l) + H3PO4(l) --> K2HPO4(l) + 2 H2O(l) a) How many mL of 0.450M KOH is needed to react with 60.0mL of 0.250M H3PO4? a) 0.060L x 0.250M = 0.015 mol H3PO4 0.015mol H3PO4 x 2mol KOH / 1mol H3PO4 = 0.03 mol KOH 0.03 mol KOH x 1L/0.450 mol = 0.06667L =

    asked by Shine bright shine far on March 1, 2019
  84. Math

    A person standing close to the edge on the top of a 160-foot building throws a baseball vertically upward. The quadratic function s(t) = -16t^2 +64t + 160 models the ball's height above the ground, s(t), in feet, t seconds after it was thrown. After how

    asked by Nicole on October 18, 2011
  85. physics

    A bubble located 0.200m beneath the surface of a glass of beer rises to the top.the air pressure at the top of the glass is 1.01(10^5)pa.assume that the density of beer is the same as that of fresh water at 4 degrees celcius.if the temperature and number

    asked by Neptoh on April 6, 2012
  86. Physics

    A diver thinks that if a typical snorkel tube of 0.13 m length works, then a tube of length 6.2 m should also work. When trying to use such a tube, what is the pressure difference between the external pressure on the diver's chest and the air pressure in

    asked by Paulina on January 19, 2013
  87. statistics

    A researcher wants to compare the variances of the heights (in inches) of 4 year college basketball players with those of players in junior colleges. A sample of 30 players from each type of school is selected, and the variances of the heights for each

    asked by vanitha on April 17, 2013
  88. Chemistry

    A sample of hydrogen gas (H2) is produced in a laboratory by displacement of water. A 645 mL sample of hydrogen is collected at 25 degrees Celsius and a total pressure of 758 torr. Collecting gas by water displacement causes the gas to become saturated

    asked by Roger on May 20, 2016
  89. Math

    Starting from 105 feet away a person on a bicycle rides towards a checkpoint and then passes it. the rider is traveling at a constant rate of 35 feet per second. THe distance between the bicycle and the checkpoint is given by the equation d= [105-35t] at

    asked by BUBBLES on October 19, 2015
  90. Bubbles

    starting from 105 feet away a person on a bicycle rides towards a checkpoint and then passes it. the rider is traveling at a constant rate of 35 feet per second. THe distance between the bicycle and the checkpoint is given by the equation d= [105-35t] at

    asked by BUBBLES on October 19, 2015
  91. math

    R. C. Droid has developed a new computer. He calls it the Droid computer. Mr. Droid has virtually every aspect of his new company well underway except for his sales force. He has not yet hired any salespeople to sell the Droid computer. Mr. Droid believes

    asked by Anonymous on November 4, 2011
  92. chem

    The following reaction is used in some self-contained breathing devices as a source of O2. 4KO2(s) + 2C02(g)---> 2K2CO3(s) + 3O2(g) Suppose that a sample of CO2(g) is added to an evacuated flask containing KO2(s) and equilibrium is established. The

    asked by tomi on April 2, 2009
  93. chemistry

    When nitroglycerin (C3H5N3O9) explodes, it decomposes into the following gases: CO2, N2, NO, and H2O. If 239g of nitroglycerin explodes, what volume will the mixture of gaseous produces occupy at 1.00 atm pressure and 2678oC? a. Write a balanced equation

    asked by Suzanne on April 27, 2014
  94. Chemistry

    A 69.4 L cylinder containing C2H6 at a pressure of 570 torr is connected by a valve to 105 L cylinder containing C6H6 at 0.350 atm pressure. Calculate the partial pressure (atm) of C6H6 when the valve is opened.

    asked by itsliferight on April 16, 2011
  95. Physics

    The bulk modulus of a liquid is 4.0 10^10 N/m2. Suppose a volume of 0.6 m3 of the liquid is taken from the surface where the pressure is approximately that of the atmosphere (1.00 10^5 N/m2) and is lowered into a pool of liquid to a depth where the

    asked by Please Help!!! on March 25, 2014
  96. Science

    2 spherical containers- P and Q are connected by a tap. P contains a gas at pressure 5 atm at 300K. Q contains same gas at pressure 2 atm at 400K. If tap is opened find the final pressure. Given: volume of Q is 4 times volume of P.

    asked by Sanchit on November 30, 2015
  97. physics

    A round pipe of varying diameter carries petroleum from a wellhead to a refinery. At the wellhead the pipe's diameter is 56.3 cm (0.563 m) and the flow speed of the petroleum is 13.5 m/s. At the refinery the petroleum flows at 5.65 m/s. What is the volume

    asked by timmy on December 10, 2014
  98. Physics

    Water flowing through a garden hose of diameter 2.77 cm fills a 25.0-L bucket in 1.40 min. (a) What is the speed of the water leaving the end of the hose? Answer in m/s (b) A nozzle is now attached to the end of the hose. If the nozzle diameter is

    asked by Renee on March 30, 2014
  99. Chemistry 101

    I had a snag from a question I asked yesterday, here is the thread. (My snag being the final post) I am trying to find the theoretical yield for this lab I am working on. The steps to finidng it would be great. In my lab I took 40mls of H2O + 4g of AgNO3+

    asked by Gweedo8 on June 8, 2009
  100. Chemistry

    Hi, could someone help me with these calculations for my lab; Given: Volume of vinegar analyzed:5 mL Con'c of NaOH: 0.09890M Avg. V of NaOH from titration:43.75 mL Moles of NaOH required to reach the equivalence point: ? Would this be

    asked by Adam on January 30, 2011