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September 2, 2014

Search: The vapor pressure of pure water at 20 degrees celsius is 17.5 torr. What is the vapor pressure at 20 degrees celsius above a solution that has 85.5 g of sucrose and 75 g of urea dissolved per kg of water?

Number of results: 34,378

Chemistry
A solution of NaCl in water has a vapor pressure of 18.1 torr at 25 degrees C. What is the mole fraction of NaCl solute particles in this solution? What is vapor pressure at 45 degrees C? Vapor pressure of pure water is 23.8 torr at 25C and 71.9 torr at 45C, assume ions are Na...
March 7, 2010 by Sara

chemistry - vapor pressure
the vapor pressure of pure water at 25C is 23.8 torr. determine the vapor pressure (torr) of water at 25 C above a solution prepared by dissolving 35g of urea (a nonvolatile, non-electrolyte, MW = 60.0G/MOL) IN 76G of water. answer:21 i just want to know the steps bc im ...
September 13, 2010 by billy

Chemistry!!!~!!
A solution of sodium chloride in water has a vapor pressure of 18.5 torr at 25C. What is the mole fraction of NaCl in this solution? What would be the vapor pressure of this solution at 48C? The vapor pressure of pure water is 23.8 torr at 25C and 83.7 torr at 48C. I've ...
April 19, 2010 by Jenn

Chem again sorry
A solution of sodium chloride in water has a vapor pressure of 18.3 torr at 25C. What is the mole fraction of NaCl in this solution? __________ What would be the vapor pressure of this solution at 45C? The vapor pressure of pure water is 23.8 torr at 25C and 71.9 torr at 45...
November 30, 2008 by Dina

chemistry
The vapor pressure of pure water at 25 degrees Celsius is 23.77 mm Hg. What is the vapor pressure, in mm Hg, of water above a solution that is 1.5m glucose, C6H12O6?
December 11, 2011 by Anonymous

vapor and osmotic pressure
A solution of the sugar mannitol ( molar mass 182.2 g/mol ) is prepared by adding 54.66 g of mannitol to 1.000 kg of water. The vapor pressure of pure liquid water is 17.54 torr at 20o C. Mannitol is nonvolatile and does not ionize in aqueous solution. a.) Assuming that ...
October 12, 2006 by Amy

Dr. Bobb222
When you get a chance: If the pure liquid vapor pressure of benzene is 155 torr and the pure liquid vapor pressure of chloroform is 333 torr, then what is the total vapor pressure at 30C of a solution of 9.26 g of benzene (C6H6) and 4.26 g of chloroform (CHCl3)? I get 195torr.
August 5, 2013 by Devron

About Chemistry
The vapor pressure of pure water at 25 C is 23.8 torr. Determine the vapor pressure (torr) of water at 25 C above a solution prepared by dissolving 35 g of urea (a nonvolatile, non-electrolyte, MW = 60.0 g/mol) in 75 g of water. im not sure about the steps for problems like ...
September 15, 2010 by BEN

Chemistry
In an experiment, 238 mL of 0.45 molar hydrochloric acid completely reacts with excess iron to produce hydrogen gas and iron (III) chloride. What volume will the hydrogen gas occupy if it is collected over water at 35 degrees Celsius and 735 torr? The vapor pressure of water ...
January 19, 2011 by Tichele

CHEMISTRY
if a pure liquid in a sealed container is in equilibrium with its own vapor, the dependence of the vapor pressure on the temperature and the heat of vaporization is governed by the Clausius-Clapeyron equation. what is the heat of vaporization if the vapor pressure of liquid ...
December 10, 2012 by tre

chemistry
the relative humidity in a room is 65%. assuming ideal gas behavior. what mass of water vapor is in the air at 25 degrees celsius if the room measures 4m 4m 3m? the vapor pressure of liquid water is 23.8 torr at 25 degrees celsius
November 1, 2011 by miky

Chemistry: Raoult's Law
If 0.380 mol of a nonvolatile nonelectrolyte are dissolved in 3.00 mol of water, what is the vapor pressure P(H2O) of the resulting solution? The vapor pressure of pure water is 23.8 torr at 25 C. I got this answer correct: 21.1 torr A solution is composed of 1.50mol ...
September 2, 2010 by Sar

chemistry
given 2C6H6+15O2->12CO2+6H2O 1. Starting with a confined volume of 4.80L and O2 with a partial pressure of 223.1 torr at 25 degrees C. C6H6 is in excess. The reaction is allowed to proceed to completion. The container is returned to 25C. Both liquid water and benzene are ...
November 13, 2012 by stacy

chemistry
given 2C6H6+15O2->12CO2+6H2O 1. Starting with a confined volume of 4.80L and O2 with a partial pressure of 223.1 torr at 25 degrees C. C6H6 is in excess. The reaction is allowed to proceed to completion. The container is returned to 25C. Both liquid water and benzene are ...
November 13, 2012 by stacy

AP Chemistry
The answer is 50.0 torr and I got 46.0 torr but idk what I did wrong. Find the vapor pressure of a solution of 164 g of C3H8O3 and 338 mL of water at 39.8 degrees Celsius. Water's VP at 39.8 degrees celsius is 54.74 torr; it's density is 0.992 g/mL.
January 25, 2011 by Ashley

Chemistry
What is the vapor pressure in Torr above a solution prepared by mixing 66.73g of benzene C6H6 with 63.26g toluene C6H5CH3 at 20 Celsius. The vapor pressure of pure benzene and toluene at 20celsius are 75 and 22 torr respectively. These compounds form nearly ideal solutions ...
April 23, 2011 by Jude

chemistry
calculate the vapor pressureof a solution of 20.0g sucrose (C12H12O6) in 80.0g water at 25 degrees celsius (vapor pressure, P, of pure water at 25C is 24torr)
September 27, 2012 by honeeey

Mole fraction of a vapor pressure?
If 0.380 mol of a nonvolatile nonelectrolyte are dissolved in 3.00 mol of water, what is the vapor pressure P(H2O) of the resulting solution? The vapor pressure of pure water is 23.8 torr at 25 C. I got this answer correct: 21.1 torr A solution is composed of 1.50mol ...
September 2, 2010 by Sar

Physical Chemistry HELP!!!!!
A solution of the sugar mannitol ( molar mass 182.2 g/mol ) is prepared by adding 54.66 g of mannitol to 1.000 kg of water. The vapor pressure of pure liquid water is 17.54 torr at 20o C. Mannitol is nonvolatile and does not ionize in aqueous solution. a.) Assuming that ...
October 14, 2006 by Lan

Chemistry
Which of the following statements is (are) true? A. The vapor pressure of CO2 is lower than the vapor pressure of water. B. Sea water has a lower vapor pressure than distilled water. C. The vapor pressure of 1 m NaCl is higher than the vapor pressure of 0.5 m KNO3, assuming ...
August 30, 2010 by kendra

Physical chemistry
Estimate the vapor pressure of sea water at 20C given that the vapor pressure of pure water is 2.338 kPa at that temperature and the solute is largely Na+ and Cl- ions, each present in about .50 mol/dm^3. I'm pretty sure the formula to use is pj=xjpj'. Where pj' is the vapor ...
September 30, 2010 by Melissa

chemistry
An ideal solution contains 40 mole % of A and 60 mole % of B at 80 degrees C. The vapor pressure of pure A and B at this temp are 480 torr and 890 torr. Calculate the vapor pressure of the solution.
October 7, 2010 by Anonymous

Chemistry
The vapor pressure of water is 23.8 torr. at 25 degrees C. Determine the mass of glucose (molar mass 180g/mol) needed to add to 500g of water to change the vapor pressure to 23.1 torr.
February 13, 2011 by Lucho

Chemistry
How many grams of carbon tetrachloride CCL4 must be mixed with 35.96g of ethyl acetate CH3COOCH2CH3 at 50? celsius to produce a solution with a vapor pressure above the solution of 291.8 torr. The vapor pressure of pure carbon tetrachloride and ethyl acetate at 50 celsius are ...
February 20, 2011 by Jude

Chem II
What is the vapor pressure at 23 degrees C of a solution of 1.20 g of naphthalene, C10H8, in 25.6 g of benzene, C6H6? The vapor pressure of pure benzene at 23 degrees C is 86.0 mmHg; the vapor pressure of naphthalene can be neglected. Calcluate the vapor pressure lowering of ...
February 14, 2008 by Ken

Chemistry
Calculate the vapor pressure of a solution of 33.0 g of gylcerol (C3H8O3) in 500g of water at 25 degrees C. the vapor pressure of water at 25 degrees C is 23.76 torr
October 18, 2010 by Missy

Physical Chemistry
The measured osmotic pressure of seawater is 25 atm at 273K. a.) What is the activity of water in seawater at 273 K? Take the partial molar volume of water in seawater to be 0.018 M-1. b.) The vapor pressure of pure water at 273 K is 4.6 torr. What is the vapor pressure of ...
October 12, 2006 by Jane

PLEASE HELP! PHYSICAL CHEM
The measured osmotic pressure of seawater is 25 atm at 273K. a.) What is the activity of water in seawater at 273 K? Take the partial molar volume of water in seawater to be 0.018 M-1. b.) The vapor pressure of pure water at 273 K is 4.6 torr. What is the vapor pressure of ...
October 14, 2006 by Amy

Chemistry
A sample of O2(g) is saturated with water vapor at 27 C. The total pressure of the mixture is 772 torr, and the vapor pressure of water is 26.7 torr at 27 C. What is the partial pressure of the O2?
March 15, 2011 by naseeb

chemistry
Given: hexane- -density at 25 degrees Celsius (.660g/ml) -Vapor pressure of pure substance at 25 degrees Celsius (150 torr) -heat if vaporization (21.0 kj/mol) -55 mL What mass of hexane vaporizes at 25 degrees Celsius?
February 8, 2011 by Elizabeth

chemistry
determine the vapor pressure of a solution at 55 degrees C that contains 34.2g NaCl in 375 mL of water. The vapor pressure of pure water at 55 degrees C is 118.1 torr. so Psolution=XsolventPsolvent I don't know why I'm not getting the correct answer... so from 34.2g NaCl you ...
May 11, 2008 by natash

Chemistry
Butanone, CH3CH2COCH3, has a vapor pressure of 100. Torr at 25C; at the same temperature, propanone, CH3COCH3, has a vapor pressure of 222 Torr. What mass of propanone must be mixed with 322.0 g of butanone to give a solution with a vapor pressure of 135 Torr? Assume ideal ...
February 10, 2010 by Cairy

chemistry
Glycerin (C3H8O3) is a nonvolatile liquid. What is the vapor pressure of a solution made by adding 180. g of glycerin to 321 mL of H2O at 39.8C? The vapor pressure of pure water at 39.8C is 54.74 torr and its density is 0.992 g/cm3.
May 4, 2010 by bob

chemistry
Glycerin, C3H8O3, is a nonvolatile liquid. What is the vapor pressure of a solution made by adding 164 g of glycerin to 325 mL of H2O at 39.8C? The vapor pressure of pure water at 39.8C is 54.74 torr and its density is 0.992 g/cm3.
February 12, 2011 by tay

Chemistry
How would you prepare 500.0 of an aqueous solution of glycerol with a vapor pressure of 24.8mm Hg at 26 degree Celsius (vapor pressure of pure water=25.21mm Hg)? assume the density of the solution to be 1.00 g/mL.
September 10, 2012 by Kris

chemistry
Compute the vapor pressure of water above a solution formed by dissolving 25.00 grams of magnesium sulfate, MgSO4 (MM=120.3) in 95.00 grams of water at 338K. The vapor pressure of pure water at 338K is 188.0 torr.
February 23, 2009 by Aimee

Chemistry- please check my work
Compute the vapor pressure of water above a solution formed by dissolving 25.00 grams of magnesium sulfate, MgSO4 (MM=120.3) in 95.00 grams of water at 338K. The vapor pressure of pure water at 338K is 188.0 torr. I took 95.00g H20 divided by 18.0g. which gave me moles for top...
February 23, 2009 by Eliz

CHEM
The vapor pressure of pure water at 25 C is 23.8 torr. Determine the vapor pressure (torr) of water at 25 C above a solution prepared by dissolving 35 g of urea (a nonvolatile, non-electrolyte, MW = 60.0 g/mol) in 75 g of water. where have i made a mistake? 35g/60=0.583 75g/...
September 16, 2010 by BEN

chemistry
An ideal solution of 5.00 mole benzene and 3.25 mole toluene. At 298 K, the vapor pressure of the pure benzene and toluene were 96. Torr, and 28.9 Torr, respectively. At what pressure does the vapor phase appear first, if the pressure above this solution is reduced from 760 ...
May 12, 2014 by Anonymous

Chemistry
A solution is made by mixing 42.0 mL of ethanol, C2H6O, and 58.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 C in torr? Values at 20C ethanol density: 0.789 g/mL & vapor pressure (torr): 43.9 torr water: denisty: 0.998 g/mL & 17.5 ...
February 19, 2012 by Joy

chemistry
At a given temperature, you have a mixture of benzene (vapor pressure of pure benzene = 745 torr) and toluene (vapor pressure of pure toluene = 290 torr). The mole fraction of benzene in the vapor above the solution is 0.590. Assuming ideal behavior, calculate the mole ...
February 22, 2012 by renee

Ap Chemistry
at 25 degrees Cliquid A has a vapor pressure of 100.0 torr, while liquid B has a vapor pressure of 200.0 torr. The heat of vaporization of liquid A is 32.0 kJ/mol and that of liquid b is 18.0 kJ/mol. At what celsius temperature will A and B have the same temperature. I haven't...
January 23, 2008 by John

chemistry
a sample of vapor weighing 0.745 g filled a 250 ml flask when placed in a water bath at 98 degrees celsius. the barometric pressure that day was 753 torr. calculate the volume of the vapor at stp, and the weight of one mol of the volitile liquid
June 18, 2012 by Anonymous

chemistry
a sample of vapor weighing 0.745 g filled a 250 ml flask when placed in a water bath at 98 degrees celsius. the barometric pressure that day was 753 torr. calculate the volume of the vapor at stp, and the weight of one mol of the volitile liquid
June 18, 2012 by Anonymous

Chemistry
2. A 3.37 gram sample of a nonvolatile nonelectrolyte ( no ions) is dissolved in 23.7 grams of hexane (C6H14) at 25.0 degrees calcius. The vapor pressure of pure hexane at this temperature is 438 tort, and the vapor pressure of the solution is 419.3 torr. Calculate the ...
December 17, 2012 by Nad

Chemistry
At 21.0 C, a solution of 23.71 g of a nonvolatile, nonpolar compound in 30.64 g of ethylbromide, C2H5Br, had a vapor pressure of 319.7 torr. The vapor pressure of pure ethyl bromide at this temperature is 400.0 torr. Assuming an ideal solution, what is the molecular mass of ...
July 14, 2014 by Luke

Chemistry
If you can show me an example of one problem, I have no idea how to approach this. Calculate where the number 40.67 came from. Use the Clapeyron-Clausisus equation. Assuming that delta H vap does not change with temperature, this equation relates the change in vapor pressure ...
February 26, 2012 by Angel

AP CHEM-URGENT PLEASE
at 25 degrees C liquid A has a vapor pressure of 100.0 torr, while liquid B has a vapor pressure of 200.0 torr. The heat of vaporization of liquid A is 32.0 kJ/mol and that of liquid b is 18.0 kJ/mol. At what celsius temperature will A and B have the same temperature. I haven'...
January 24, 2008 by John

College Chemistry
A sample of octane in equilibrium with its vapor in a closed 1.0 L container has a vapor pressure of 50 torr at 45oC. The containers volume is increased to 2.0 L at constant temperature and equilibrium is re-established. What is the vapor pressure? The answer I got was 25 ...
November 19, 2010 by Mollie

Chemistry
A 5.00-gram sample of glucose, C6H12O6, [molar mass = 180.] is dissolved 10.0 grams of water What is the molality of the glucose solution? Calculate the boiling(BP) and freezing points(FP) of this solution to the nearest 0.1 C. The vapor pressure of pure water at 30C is 25.0...
January 15, 2011 by Mark

Chemistry
Octane has a vapor pressure of 40 torr at 45.1 degrees Celsius and 400 torr at 104 degrees Celsius. What is its heat of vaporization? (Given R=8.314J/mol*K) Please explain.
December 14, 2012 by Dayton

AP Chem - to Dr. Bob
I don't understand how to even start this problem: A mixture of H2(g), O2(g), and 2 mL of H2O is present in a 0.5 L rigid container at 25 degrees Celsius. The number of moles of H2 and the number of moles of O2 are equal. The total pressure is 1146 mmHg. Vapor pressure of ...
January 23, 2007 by Belinda

Chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure (in torr) of a solution made from dissolving 16.6 g of biphenyl in 26.0 g of benzene?
January 23, 2013 by Ocean

chemistry ap
Why would [23.8-(.0588)(23.8)] be the proper setup to determine the vapor pressure of a solution at 25 Celsius that has 45g of C6H12O6, glucose (MM=180gxmol^-1), dissolved in 72g of H2O? The vapor pressure of pure water at 25Celsius is 23.8 torr. vp pure solvent - lowering due...
May 17, 2007 by alexa

Chemistry
The vapor pressure of pure acetone (propanone) is 266 torr. When a non-volatile solute is added, the vapor pressure of acetone above the solution falls to 232 torr. What is the mole fraction of acetone in the solution? Show work. A) 0.69 B) 0.32 C) 0.13 D) 0.045 E) 0.87
February 27, 2013 by Dee

Chemistry
A solution is made by mixing 30.0 mL of ethanol, C2H6O, and 70.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 C? I got an answer of 15.45 torr and it marked me incorrect and said "Your answer is the the partial vapor pressure ...
February 18, 2012 by Lauren

Science
The vapor pressure of water at 25 oC is 23.8 torr. Calculate the vapor pressure of a solution prepared by dissolving 35.0 g of urea [(NH2)2CO] in 75.0 g of water at 25 oC.
February 17, 2013 by Carlos

chemistry
What is the vapor pressure at 23 C of a solution of 1.20 g of naphthalene, C10H8, in 25.6 g of benzene, C6H6? The vapor pressure of pure benzene at 23 C is 86.0 mmHg; the vapor pressure of naphthalene can be neglected. Calculate the vapor pressure lowering of the solution.
April 15, 2013 by george

CHEMISTRY
1. What is the vapor pressure at 25C of a solution of 1.20g of nephtalene C10H8 in 25.6g of benzone C6H6? The vapor pressure of pure benzene at 23C is 86.0mmHg the vapor pressure of naphthalene can be neglected. Calculate the vapor pressure lowering of the solution. 2. A ...
March 20, 2013 by N COMAS

Chemistry
1) What is the vapor pressure at 25C of a solution of 1.20g ofnephtalene C10H8 in 25.6g of benzone C6H6? The vapor pressure of pure benzene at 23C is 86.0mmHg the vapor pressure of naphthalene can be neglected. Calculate the vapor pressure lowering of the solution. 2)A ...
March 19, 2013 by N comas

Chemistry
Gasoline is a mixture of hydrocarbons, a major component of which is octane,CH3CH2CH2CH2CH2CH2CH2CH3. Octane has a vapor pressure of 13.95 torr at 25 degrees celcius and a vapor pressure of 144.78 torr at 75 degrees celcius. Use these data and the equation in part (a) to ...
January 25, 2012 by Jeremy

Chemistry 2
An aqueous solution has a vapor pressure of 81.1 at 50 . The vapor pressure of pure water at this temperature is 92.6. What is the concentration of in mass percent?
January 27, 2011 by Jesse

Chemistry
An example of a solution that exhibits a positive deviation from Raoults Law (total pressure is greater than expected) is a solution of acetone (CH3COCH3) and carbon disulfide (CS2). a) Draw Lewis structures for these molecules. Explain the deviation from ideal behavior in ...
March 11, 2012 by Laffy Taffy

chemistry
the vapor pressure of pure water at 60 c is 157 mmHg. what is the vapor pressure of this solution at the same temperature, in mm Hg?
August 25, 2014 by angel

chemistry
A sample of hydrogen gas was collected over water at 36 degrees celsius and 855 mmHg. The volume of the container was 6.50 L. Calculate the number of moles of H2 collected. (vapor pressure of water is 44.6 torr at 36 degrees Celsius)
October 20, 2010 by lavonne

Chemistry
What is the mole fraction of methyl n-butyrate CH3(Ch2)2COOCH3 in the vapor phase of a solution consisting of? a mixture of methyl n-butyrate and ethyl acetate CH3COOCH2CH3 at 50 Celsius if the total pressure above the solution is 192.5 torr. The vapor pressure of methyl n-...
February 20, 2011 by Jude

chemistry
An Ideal solution is formed by mixing 0.26 mol of pentane (vapor pressure + 511 torr) with 0.34 mol of hexane (vapor pressure = 150 torr). What is the total vapor pressure of the ideal solution?
March 6, 2014 by Anonymous

Chemistry
find the dry volume at STP of 500 mL of nitrogen gas measured over water at 15 degree C and 680 mmHg. the water vapor exerts a partial pressure of 12.8 torr at this temperature ( vapor pressure).
November 27, 2012 by delo

chemistry/ partial pressure
N2 was collected over water at 25 degrees C. The resulting pressure was 705 torr. The vapor pressure of water at 25 degrees C is 23.8 mm. What is the partial pressure of N2?
October 22, 2011 by Bianca

chemistry
A sample of Nitrogen is collected over water at 26 Celsius. What is the partial pressure of nitrogen if the total pressure is 99.4 kPa and the partial pressure of water vapor at 26 Celsius is 25 torr
February 7, 2012 by paula

Chemistry
At 80 degrees Celsius, the vapor pressure of pure liquids x, y and z are 385, 190 and 66 mm Hg. what pressure must be exerted on the surface of the solution containing one mole of x, three moles of y, and two moles of z for the boiling point to begin at 80 degrees Celsius?
August 23, 2013 by Angela

Chemistry
At 80 degrees Celsius, the vapor pressure of pure liquids x, y and z are 385, 190 and 66 mm Hg. what pressure must be exerted on the surface of the solution containing one mole of x, three moles of y, and two moles of z for the boiling point to begin at 80 degrees Celsius?
August 23, 2013 by Angela

chemistry
Calculate the vapor pressure lowering of water when 5.67 g of glucose, C6H12O6, is dissolved in 25.2 g of water at 25 C. The vapor pressure of water at 25 C is 23.8 mmHg. What is the vapor pressure of the solution?
March 29, 2012 by MJ

Chemistry
What is the mole fraction of benzene C6H6 in the VAPOR PHASE from a solution consisting of a mixture of benzene and n-hexame ch3(ch2)4ch3 at 27celsius, if the total pressure above the solution is 135.2 torr? The vapor pressures of benzene and n-hexame at 27 celsius are 103 and...
April 24, 2011 by Jude

Chemistry
The vapor pressure of liquid chloroform, CHCl3, is 400.0 torr at 24.1 degrees Celsius and 100.0 torr at -6.3 degrees Celsius. What is delta Hvap of chloroform?
September 26, 2010 by Patrick

Chemistry
A gas is collected over water at 30.0 degrees celsius. It's pressure is 752.5 mm Hg. What is the pressure of the dry gas? Water vapor pressure at twenty degrees Celsius is 27.5 mm Hg.
April 24, 2012 by Maria

Chemistry
A gas is collected over water at 30.0 degrees celsius. It's pressure is 752.5 mm Hg. What is the pressure of the dry gas? Water vapor pressure at twenty degrees Celsius is 27.5 mm Hg.
April 24, 2012 by Maria

Chemistry
The vapor pressure of pure ethanol at 20 degrees C is 44 mmHg, and the vapor pressure of pure methanol at the same temperature is 94 mmHg. In a solution of the two, the mole fraction of ethanol is .439; the mole fraction for methanol is .561. Calculate the vapor pressure of ...
October 18, 2010 by Stephany

Chemistry
Calculate the vapor pressure of a solution of 0.48 mol of cholesterol in 6.0 mol of toluene at 32C. Pure toluene has a vapor pressure of 41 torr at 32C. (Assume ideal behavior.)
February 16, 2013 by Stevi

chemistry
calculate the vapor pressure of a solution 0.53 mol of cholestrol in 4.1 molof toluene at 32 degree C. pure toluene has a vapor pressure of 41 torr at 32 degree C
April 28, 2014 by courtney

Air conditioning
The partial pressure of water vapor in an atmosphere at 35oC and 740 mm Hg pressure is 37 mm Hg. What is the relative humidity? What is the actual concentration of water vapor, expressed in ppm? The vapor pressure of water at 35oC is 42 mm Hg.
March 24, 2011 by althea

General Chemistry
Answer Check... A 3.00L sample of gas was collected over water at 45 degrees Celsius. The wet gas exerts pressure of 1.50atm. When dried the sample occupies 1.80L and exerts a pressure of 1.77 atm at 80.0 degrees Celsius. What is the vapor pressure of water at 45 degrees ...
September 5, 2011 by Kathy

chemestry
an aqueous solution was prepared by dissolving 1438.0g of a nonelectrolyte in 469.0g of water at 25*c. the Vapor pressure of the resulting solution was found to be 20.5 torr. what is the molar mass of the unknown compound? the vapor pressure of the water at 25*c is 23.76torr.
March 2, 2011 by Nick

college chemistry
Hydrogen gas is produced when zinc reacts with sulfuric acid: Zn(s)+H_2SO_4(aq)---ZnSO_4(aq)+H_2(g) If 160 mL of wet H_2 is collected over water at 24 Celsius and a barometric pressure of 739 torr, how many grams of Zn have been consumed? (The vapor pressure of water is 22.38 ...
November 20, 2011 by jas

chemistry112
The partial water vapor pressure over the soulution of glucose (C6H12O6) in water is 715 torr at 100 degrees celsius. Find freezing temperature of this solution.
September 7, 2011 by Dominique

Chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 10.7 g of biphenyl in 33.9 g of benzene?
February 18, 2012 by Sarah

Chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 18.9 g of biphenyl in 26.4 g of benzene?
February 22, 2012 by Josh

Chem 2
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 12.5 g of biphenyl in 27.9 g of benzene?
July 14, 2012 by Payie

Science
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 15.2 g of biphenyl in 29.5 g of benzene?
October 9, 2012 by Maria

chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 19.9 g of biphenyl in 34.3 g of benzene?
January 21, 2013 by Brianna

Chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 19.6 g of biphenyl in 25.1 g of benzene?
January 29, 2013 by Gabrielle

chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 11.1 g of biphenyl in 29.1 g of benzene?
February 22, 2013 by Anonymous

Chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 17.3 g of biphenyl in 34.0 g of benzene?
February 25, 2013 by Max

Chemistry
Biphenyl, C12H10, is a nonvolatile, non ionizing solute that is soluble in benzene, C6H6. At 25 C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 14.3 g of biphenyl in 25.8 g of benzene?
February 9, 2013 by Felicia

AP Chemistry
A 1277 mL sample of nitrogen (N2) was collected by displacement of water at 24 degrees C under a total barometric pressure of 966 torr. What mass of dry nitrogen was collected? The vapor pressure of water at 24 degrees C is 22 torr. Answer in units of g
February 16, 2014 by Gabriella

Chemistry
The vapor pressure of chloroform is 173.11 mm Hg at 25 degrees celsius. A nonvolatile, nonelectrolyte that dissolves in chloroform is aspirin. Calculate the vapor pressure of the solution at 25 degrees celsius when 6.243g of aspirin (180.1g/mol) are dissolved in 244.5g of ...
February 13, 2012 by Hannah

college chem
Biphenyl, C12H10, is a nonvolatile, non ionizing solute that is soluble in benzene, C6H6. At 25 C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 14.3 g of biphenyl in 25.8 g of benzene?
February 9, 2013 by Zachary

Pacific Union College
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 17.5 g of biphenyl in 28.8 g of benzene?
February 24, 2013 by Nick

chemistry
How many grams of NaCl must be added to 225.0 g of H2O at 45 C to lower the vapor pressure of water by 2.21 mmHg? The vapor pressure of pure water is 71.93 mmHg at 45 C.
April 20, 2013 by Kelly

AP Chem - to Dr. Bob
I don't understand how to even start this problem: A mixture of H2(g), O2(g), and 2 mL of H2O is present in a 0.5 L rigid container at 25 degrees Celsius. The number of moles of H2 and the number of moles of O2 are equal. The total pressure is 1146 mmHg. Vapor pressure of ...
January 23, 2007 by Belinda

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