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December 20, 2014

Search: partial pressure

Number of results: 8,068

Chemistry
In a study of the following reaction at 1200K it was observed that when the equilibrium partial pressure of water vapor is 15.0 torr, the total pressure at equilibrium is 36.3 torr. 3Fe(s)+4H2O(g) (reversible arrows) Fe3O4(s)+4H2(g) Calculate the value of Kp for this reaction ...
July 30, 2007 by Taasha

Chemistry
The oxygen gas emitted from an aquatic plant during photosynthesis is collected over water at a temperature of 25 C and a total pressure of 760 torr . what is the partial pressure of the gas?
April 16, 2010 by Zoe

Chemistry HELP!!
A mixture of 0.154 moles of C is reacted with 0.117 moles of O2 in a sealed, 10.0 L vessel at 500 K, producing a mixure of CO and CO2. The total pressure is 0.640 atm. What is the partial pressure of CO?
March 31, 2011 by Toni Jones

vapor pressure
762 + vp ethanol = total pressure. Dalton's Law of partial pressures. The total pressure in a flask containing air and ethanol at 257C is 882 mm Hg. If the pressure of the air in the flask is 762 mm Hg, the vapor pressure of ethanol is ?mm Hg.
January 17, 2007 by DrBob222

Please help (Bio)
Measurements of oxygen binding by whole human blood, at 37oC, at pH 7.4, and in the presence of 40mm of CO2 and normal physiological levels of BPG (5 mmol/L of cells), give the following: PO2 (mm Hg) = 10.6, 19.5, 27.4, 37.5, 50.4, 77.3, 92.3 % saturation (=100 x Theta) = 10, ...
September 28, 2007 by Gulzaman

college chemistry
a gas is collected over water at a certain temperature. The total pressure is 756 torr. The vapor pressure of water at this temperature is 17torr. The partial pressure of the gas collected is what?
May 2, 2011 by Kaelin

Chemistry
In an experiment, a mixture of two gases occupies a volume of 3.00 L at a temperature of 22.5 degree centigrade. The mixture contains 14.0 g of water, 11.5 g of oxygen, and 37.3 g of nitrogen. Calculate the total pressure and the partial pressure of each gas?
November 15, 2014 by Aaqib Zaman

chemistry
A deep sea diver uses a gas cylinder of 10.0 L and a content of 51.4 g of O2 and 32.5 g of He. Calculate the partial pressure of each gas and the total pressure of the temperature of the gas is 16 C.
July 3, 2014 by rtt

chemistry
ind the partial pressure of oxygen in a sealed vessel that has a total pressure of 2.6 atm and also contains carbon dioxide at 1.2 atm and helium at 0.10 atm.
May 4, 2010 by jerkoff

chemistry
Methanol boils at 65Celcius. The vapor pressure of ethanol at 65Celcius is at 410 torr. for a mixture containing .200 mol of methanol and .100 mol of ethanlol (at 65 Celcius) calculate the: 1. partial pressure of each liquid 2. total vapor pressure of the solution 3. percent ...
October 25, 2009 by Cerise

ap chemistry
An apparatus consists of a 2 L flask containing nitrogen gas at 25C and 819 kPa, joined by a valve to a 12 L flask containing argon gas at 25C and 51 kPa. The valve is opened and the gases mix. What is the partial pressure of nitrogen after mixing? Answer in units of kPa ...
February 9, 2013 by cheri

Chemistry
A 71.0 L cylinder containing CH2O at a pressure of 0.550 atm is connected by a valve to 1.50 L cylinder containing N2 at 266.0 torr pressure. Calculate the partial pressure (atm) of N2 when the valve is opened.
January 20, 2010 by Bob

Chem 130
A sample of oxygen gas is collected by displacement of water at 25C and 1.11 atm total pressure. If the vapor pressure of water is 23.756 mm Hg at 25C, what is the partial pressure of the oxygen gas in the sample?
May 5, 2014 by michelle

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

Chemistry
A tank contains Ar at 1.33 atm and Kr at 3.59 atm. We add enough Xe to give a total pressure of 6.3 atm. What is the partial pressure of the Xe?
May 3, 2012 by Brandon

chemistry
Three gases (8.00 of methane, , 18.0 of ethane, , and an unknown amount of propane, ) were added to the same 10.0- container. At 23.0 , the total pressure in the container is 3.50 . Calculate the partial pressure of each gas in the container.
May 5, 2010 by emmanuel

Chemistry
Three gases (8.00 of methane, , 18.0 of ethane, , and an unknown amount of propane, ) were added to the same 10.0- container. At 23.0 , the total pressure in the container is 3.90 . Calculate the partial pressure of each gas in the container.
August 2, 2010 by Stephen

Chemistry
EOC Problem 6.046 A mixture of gases contains 0.65 mol of N2, 0.70 mol of O2, and 0.90 mol of He. What is the partial pressure of each gas (in atm and in torr) in a 25.0 L cylinder at 340 K? What is total pressure?
February 26, 2014 by Amber b

chemistry
A sample of oxygen gas is collected by displacement of water at 25C and 1.17 atm total pressure. If the vapor pressure of water is 23.756 mm Hg at 25C, what is the partial pressure of the oxygen gas in the sample?
May 5, 2014 by Edith

chemistry
Three gases (8.00 of methane, 18.0 of ethane, and an unknown amount of propane, were added to the same 10.0-L container. At 23.0 C , the total pressure in the container is 3.60 atm. Calculate the partial pressure of each gas in the container.
November 20, 2010 by Jamie

chemistry
A tank contains a mixture of 3.0 mol of nitrogen 2.0 mol of oxygen and 1 mol of carbon dioxide at 25 degrees and a total pressure of 10 ATM calculate the partial pressure in torr of each gas?
January 19, 2012 by Lisa

Bio (why no one is helpting?)
Measurements of oxygen binding by whole human blood, at 37oC, at pH 7.4, and in the presence of 40mm of CO2 and normal physiological levels of BPG (5 mmol/L of cells), give the following: PO2 (mm Hg) = 10.6, 19.5, 27.4, 37.5, 50.4, 77.3, 92.3 % saturation (=100 x Theta) = 10, ...
September 29, 2007 by Gulzaman

chemistry
A gaseous mixture containing 6 moles of oxygen, 8 moles of helium and 6 moles of carbon dioxide in a container under a pressure of 40 atm. Calculate the partial pressure of th3 individual gases.?
May 30, 2013 by sagar

Chemistry
Equimolar amounts of gas A and B, each at an initial partial pressure of 1.00 atm are combined in a flask. The flask is sealed and allowed to react to completion according to the reaction: 2A(g)+ B(g) --> C(g) What is the final pressure inside the flask?
January 1, 2014 by DJS

chemistry
What is partial pressure?
March 18, 2008 by Miley

chemistry
Find the a)partial pressure of ethylene oxide and b)the total gas pressure, after 30 hours in a reaction vessel at 415C if the initial pressure of ethylene oxide is 782mmHg. k= 2.05x 10^-4 t(1/2)=56.3 Part A) I converted hours to seconds, and used the formula ln(Pa)t = 108000s...
April 17, 2014 by mae

chemistry
if oxygen gas were collected over water at 22c and the total pressure of the wet gas were 710 mm hg what would be the partial pressure of the oxygen?
February 23, 2011 by fox

chemistry
A sample of air from the basement of a home is found to contain 8.3 ppm of radon. What is the partial pressure of radon in the basement if the total pressure is 755 torr?
November 7, 2011 by Anonymous

AP chem
a 2L container is charged with 2atm of O2 at 298 Kelvin. Ch4(g) + 2O2(g) --> CO2(g) + 2H20(g) calculate the partial pressure of methane needed to react completely with the O2 in the vessel. What is the total pressure after the reaction is complete if the temperature ...
April 11, 2009 by sarah

Chemistry
A gaseous mixture of O2, H2, and N2 has a total pressure of 1.50 atm and contains 8.20 g of each gas. Find the partial pressure of each gas in the mixture They don't give you Volume and Temperature. Please explain it to me, thank you!
August 2, 2010 by Joseph

chemistry
a steel cylinder with nitrotgen hydrogen and ammonia gases is at 500C and 5.00 atm if patrtila pressure of nitrogen is 1850 mm Hg and hydrogen is 1150 mm Hg what is the partial pressure of ammonia in mm H</p>
November 16, 2011 by susan

chemistry
20g of nitrogen gas and 10g of helium gas are placed together in a 5L container at 25C . Calculate the partial pressure of each gas and the total pressure of the gas mixture.
November 20, 2011 by NONO

Chemistry
A heliox deep-sea diving mixture contains 2.0 g of oxygen to every 98.0 g of helium.What is the partial pressure of oxygen when this mixture is delivered at a total pressure of 8.9atm ?
March 20, 2014 by Anonymous

chemistry
2 liquids a and b have vapour pressure of 500 mm hg and 200 mm hg .calculate mole fraction of a at which 2 liquids have equal partial pressure
July 10, 2011 by Anonymous

vapor pressure
The total pressure in a flask containing air and ethanol at 25.7C is 878 mm Hg. The pressure of the air in the flask at 25.7C is 762 mm Hg. If the flask is immersed in a water bath at 45.0C , the total pressure is 980 mm Hg. The vapor pressure of ethanol at the new temperature...
January 22, 2007 by yayhawknelson

Chemistry 105
A heliox deep-sea diving mixture contains 2.0 g of oxygen to every 98.0 g of helium. What is the partial pressure of oxygen when this mixture is delivered at a total pressure of 9.3 atm?
October 23, 2011 by JULIE

Chemistry
At T = 25 degrees Celsius, the reaction No2 <-> 2NO +O2 has an equilibrium constant K=5.0*10^-13. Suppose the container is filled with NO2 at an initial pressure of 0.25 atm. Calculate the partial pressure of NO at equilibrium
November 29, 2012 by Paul

Chemistry
At T = 25 degrees Celsius, the reaction No2 <-> 2NO +O2 has an equilibrium constant K=5.0*10^-13. Suppose the container is filled with NO2 at an initial pressure of 0.25 atm. Calculate the partial pressure of NO at equilibrium
November 29, 2012 by Paul

Chemistry
Im studying for the MCAT and i found this question in my old chem book. i can't figure out how to derive the formula they are talking about... Nitrogen monoxide reacts with oxygen to give nitrogen dioxide. 2 NO(g)+ O2(g) --> 2 NO2(g) The rate law is -[NO]/t...
August 4, 2014 by Jesse

Chemistry
Im studying for the MCAT and i found this question in my old chem book. i can't figure out how to derive the formula they are talking about... Nitrogen monoxide reacts with oxygen to give nitrogen dioxide. 2 NO(g)+ O2(g) --> 2 NO2(g) The rate law is -[NO]/t...
August 4, 2014 by Jesse

chemistry
what is the partial pressure of 02 collected over water at 25 degree C and 630 torr (vapor pressure of H20 at 25 degree C is 23.8 torr)
December 5, 2010 by dody

Chemistry
A gas mixture contains 4.00 grams of O2 and 4.00 grams of He. If the total pressure of the gas sample is 4.67 atm, what is the partial pressure of each component?
April 18, 2012 by Anna

chemistry
A gas mixture contains 75.2% nitrogen and 24.8% krypton by mass. What is the partial pressure of krypton in the mixture if the total pressure is 853mmHg ?
March 20, 2014 by Anonymous

Chemistry
A deep-sea diver uses a gas cylinder with a volume of 13.0 L and a content of 50.1 g of O2 and 33.4 g of He. Calculate the partial pressure of each gas and the total pressure if the temperature of the gas is 22C. I got PO= 5.82, PHe=15.5 and Ptotal=21.4 but it says that PO ...
April 29, 2010 by Anonymous

vapor pressure
The total pressure in a flask containing air and ethanol at 25.7C is 878 mm Hg. The pressure of the air in the flask at 25.7C is 762 mm Hg. If the flask is immersed in a water bath at 450C, the total pressure is 980 mm Hg. The vapor pressure of ethanol at the new temperature ...
January 19, 2007 by yayhawknelson

Chemistry
The mass percent of a three component gas sample is 95.2% PF5, 1.40% C2H2 and 3.40% C3H6. Calculate the partial pressure (atm) of PF5 if the total pressure of the sample is 570.0 torr.
January 20, 2010 by Katie

chem
a mixture of 0.156 moles of C is reacted with 0.117 moles of O2 in a sealed, 10.0L vessel at 500K, producing a mixture of CO amd CO2. The total pressure is 0.640 atm. what is partial pressure of CO?
March 5, 2012 by shery

chemistry
a scuba driver is using eanx32, an enhanced nitrox gas mixture. this mixture contains 32% oxygen with 68% nitrogen. if the cylinder is at a pressure of 250 kpa, what is the partial pressure of oxygen?
June 5, 2014 by julie

PLEASEE HELP CHEMISTRY
What is partial pressure?
March 18, 2008 by Miley

Chemistry
How do you find the partial pressure?
March 1, 2012 by Anonymous

chemistry
A 1 L flask is filled with 1.40 g of argon at 25 degrees celcius. A sample of ethane vapor is added to the same flask until the total pressure is 1.00 atm. Whatis the total pressure of Argon in the flask ? What is the partial pressure of ethane in the flask?
March 1, 2010 by supaflychic101

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.
April 12, 2011 by Matty

chem
the total pressure of n2o4 and no2 IS 1.38 atm. if kp is 6.75(25 C) calculate partial pressure of NO2 in the mixture. 2NO2<---> n2o4
November 28, 2010 by anon

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.
April 16, 2011 by itsliferight

Chem
Im studying for the MCAT and i found this question in my old chem book. i can't figure out how to derive the formula they are talking about... Nitrogen monoxide reacts with oxygen to give nitrogen dioxide. 2 NO(g)+ O2(g) --> 2 NO2(g) The rate law is -[NO]/t...
August 4, 2014 by Jesse

Chem
Im studying for the MCAT and i found this question in my old chem book. i can't figure out how to derive the formula they are talking about... Nitrogen monoxide reacts with oxygen to give nitrogen dioxide. 2 NO(g)+ O2(g) --> 2 NO2(g) The rate law is -[NO]/t...
August 4, 2014 by Jesse

Chemistry
The oxygen gas emitted from an aquatic plant during photosynthesis is collected over water at a temperature of 25 degrees Celcius and a total pressure of 752 torr. What is the partial pressure of the oxygen gas?
May 11, 2013 by JeNae

Chem
A 150.0 mL cylinder containing CO at a pressure of 9.50 atm is connected by a valve to 9500 mL cylinder containing B5H9 at 2280 torr pressure. Calculate the partial pressure (atm) of B5H9 when the valve is opened.
April 15, 2011 by noclueboo

Chemistry
Three gases (8.00 of methane,CH4 , 18.0 of ethane,C2H6 , and an unknown amount of propane,C3H8 ) were added to the same 10.0-L container. At 23.0 degress celsius , the total pressure in the container is 3.90 atm. Calculate the partial pressure of each gas in the container.
September 23, 2008 by Sarah

Chemistry
At 900 K the following reaction has Kp=0.345; 2 SO2(g) + O2 (g) -> 2 SO3 (g) In an equilibrium mixture the partial pressures of SO2 and O2 are 0.145 atm and 0.455 atm, respectively. What is the equilibrium partial pressure of SO3 in the mixture?
September 7, 2009 by Anonymous

Chem
A heliox deep-sea diving mixture contains 2.0 g of oxygen to every 98.0 g of helium. What is the partial pressure of oxygen when this mixture is delivered at a total pressure of 8.0 atm? This is a new chapter were covering and i have no idea how to do this?
October 15, 2010 by marsha

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
If the equilibrium constant K equals .05, and the reaction C3H8=C3H6 + H2 (all gases), starts with pure C3H8 and is allowed to reach equilibrium at 200 K at a total pressure of 2 bar. Calculate the partial pressure of H2 at equilbirum.
February 14, 2014 by Anonymous

chemistry
You are studying the formation of HI(g) from its gaseous elements H2(g) and I2(g). The free energy of formation of HI(g) is 10.10 kJ/mol at 500 K. When the free energy change of the process at 500 K is zero, the reaction mixture shows partial pressures of HI and I2 as 10.0 ...
April 18, 2013 by Yasemine

Chemistry
At 25 C, the equilibrium partial pressures for the following reaction were found to be PA = 4.10 bar, PB = 5.60 bar, PC = 1.20 bar, and PD = 9.70 bar. 2A(g)+2B(g)-->C(g)+ 3D(g) What is the standard change in Gibbs free energy of this reaction at 25 C. I don't really get ...
April 25, 2014 by Alexis

chemistry
Two gases are contained in gas bulbs connected by a valve. Gas A is present in a 56 L bulb at a pressure of 213 torr. Gas B exerts a pressure of 683 torr in a 74 L bulb. What is the partial pressure of gas B after they equilibrate once the valve has been opened? Answer in ...
November 1, 2010 by Bob

AP Chemistry
Part 1 of 3: An apparatus consists of a 2 L flask containing nitrogen gas at 30 degrees C and 758 kPa, joined by a valve to a 11 L flask containing argon gas at 30 degrees C and 49.7 kPa. The valve is opened and the gases mix. What is the partial pressure of nitrogen after ...
February 16, 2014 by Gabriella

Chemistry
I need help calculating the partial pressure of H2 using the following information 0.028 g Mg with excess HCl which produced 31.0 mL of H2 gas. The gas was collected by water displacement in a 22 degrees Celsius water bath. The pressure was 746 mmHg.
October 6, 2010 by Amanda

chemistry
A 1-L flask is filled with 1.45 g of argon at 25 degrees C. A sample of ethane vapor is added to the same flask until the total pressure is 1.35 atm. What is the partial pressure of argon in the flask?
December 2, 2010 by Liz

Chemistry
What is the partial pressure (in mm Hg) of neon in a 4.00 L vessel that contains 0.442 mol of methane, 0.414 mol of ethane, and 0.859 mol of neon at a total pressure of 943 mm Hg?
April 22, 2010 by Camarra

chem
For the reaction: PCl3(g) + Cl2(g) --> PCl5(g) at 85 degreeC, Kp = 1.19 If one starts with 2.00 atm pressure of PCl3, 1.00 atm pressure of Cl2 and no PCl5, what is the partial pressure of PCl5(g) at equilibrium?
March 12, 2008 by jack

Chemistry
A 1L flask is filled with 1.25 g of argon at 25 degrees celcium. A sample of ethane vapor is added to the same flask until the total pressure is 1.45 atm. What is the partial pressure of argon in the flask?
October 5, 2010 by Karen

Chem
To a tank already containing N2 at 2.0 atm and O2 at 1.0 atm, we add an unknown quantity of CO2 until the total pressure is 4.6 atm. What is the partial pressure of the CO2?
October 11, 2012 by Stacy

chem
To a tank already containing N2 at 2.0 atm and O2 at 1.0 atm, we add an unknown quantity of CO2 until the total pressure is 4.6 atm. What is the partial pressure of the CO2?
October 11, 2012 by stac

chemistry
a 12.5 g sample of oxygen gas is added to a 25.og sample of nitrogen gas in a 25.0L'Container at 28 C. Calculate the partial pressure of each gas and the total pressure of he mixture. answer
January 9, 2013 by Anonymous

chemistry
A 1-L flask is filled with 1.25g of argon at 25C . A sample of ethane vapor is added to the same flask until the total pressure is 1.45amt .What is the partial pressure of argon, Par, in the flask?
October 3, 2009 by Monica

Chemistry
A mixture of 1.39 g H2 and 1.60 g He is placed in a 1.00-L container at 27C. Calculate the partial pressure of each gas and the total pressure. PH2 = ? atm PHe = ? atm Ptotal = ? atm Please put answer so i can compare to my answer
April 5, 2013 by Rashid

Chemistry...
The oxygen gas emitted from an aquatic plant during photosynthesis is collected over water at a temperature of 25 degrees celsius and a total pressure of 762 torr. What is the partial pressure of the oxygen gas? What formula do I need to use?
February 20, 2013 by Katie

chemistry
A 265- mL flask contains pure helium at a pressure of 747 torr. A second flask with a volume of 485 mL contains pure argon at a pressure of 721 torr .If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial pressure of helium?
September 30, 2010 by kat

chemistry
If helium added to the mixture increases the pressure to 1.90 {\rm atm}, what is the partial pressure ({\rm atm}) of the helium?
November 18, 2010 by Anonymous

chemistry
A mixture of O2 and He is prepared for a scuba diver who is going to descend 200 ft below the ocean surface. At that depth, the diver breathes a gas mixture that has a total pressure of 7.00 atm. If the pressure of the O2 in the tank at 200 ft below the ocean surface is 1140 ...
December 12, 2010 by steph

Chemistry
An 8.07g sample of impure Ag2O decomposes into solid silver and O2(g). If 395mL O2 is collected over water at 25C and 749.2mmHg barometric pressure, then what is the percent by mass of AgO2 in the sample? The vapor pressure of water at 25C is 23.8mmHg. Could someone help me ...
September 27, 2013 by Nancy

science
At a pressure of 2.00 atm, a sample of air consists of 0.20 moles of nitrogen, 0.65 moles of oxygen and 0.15 moles of argon. What is the partial pressure of the oxygen?
October 30, 2012 by Mickeykalle

Chemistry
A mixture of gases contains 2.00 mol of O2, 3.00 mol of N2, and 5.00 mol of He. The total pressure of the mixture is 850 torr. What is the partial pressure of each gas?
December 10, 2012 by Alexis

chemistry
A 8.00 L cylinder containing SF6 at a pressure of 0.400 atm is connected by a valve to 91.0L cylinder containing 02 at 342 torr pressure. Both cylinders are at 8.00 C. Calculate the partial pressure (torr) of SF6 when the valve is opened and the temperature of the cylinders ...
January 27, 2008 by betty

Chemistry
A mixture of 0.47 mole of H2 and 3.59 moles of HCl is heated to 2800C. Calculate the equilibrium partial pressures of H2 Cl2 and HCl if the total pressure is 2.00 atm. For the reaction Kp is 193 at 2800C. H2(g) +Cl2(g) = 2HCl (g) What I've done so far: found the partial ...
December 19, 2010 by Jamal

Chemistry
A mixture of gases contains 0.65 mol of N2, 0.70 mol of O2, and 0.90 mol of He. What is the partial pressure of each gas (in atm and in torr) in a 25.0 L cylinder at 340 K? What is total pressure? I know you: Use mols each gas in PV = nRT and solve for p. Then Ptotal = pN2 + ...
February 26, 2014 by Chelsey

Physics
Suppose that there is a partial blockage of the aorta, which normally pumps about 5 L of blood per minute. If the diameter of the aorta were reduced by 30%, what increase in blood pressure gradient would be needed to obtain the normal flow rate? (Assume that Poiseuilles law ...
January 18, 2013 by Tim

Chemistry
A gas mixture containing N2 and O2 was kept inside a 2 L container at a temperature of 23 C and a total pressure of 1 atm. The partial pressure of oxygen was .722 atm. How many grams of nitrogen were present in the gas mixture?
July 20, 2013 by Sara

Chemistry
Exactly 1.0 mole of oxygen and 7.0 moles of nitrogen gas are in a container. The total gas pressure is 5.7 atm. What is the partial pressure of nitrogen in atm? I'm not sure how to go about setting up the problem. Any help is appreciated!
February 12, 2014 by Amanda

Chemistry-Gas Laws
At 0 degrees celcius, a 1.0 L flask contains 5.0 x 10^-2 mol N2, 1.5 x 10^2 mg O2, 5.0 x 10^21 molecules NH3. Calculate the partial pressure of each gas and what is the total pressure in the flask. How do I calculate this?
May 8, 2012 by Bran

chem
All the oxygen gas from a 22.0-L container at a pressure of 72.2 kPa is added to a 18.0-L container of hydrogen at a pressure of 150. kPa. After the transfer, what is the partial pressures of hydrogen?
November 12, 2014 by Anonymous

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

Chemistry
A mixture of gases contains 2.41 moles of O2, 1.24 moles of H2 and 1.92 moles of C. Calculate the partial pressure of gases if the total pressure is 3.0 atm
December 8, 2014 by Shayne

Chemistry
Determine the partial pressure of oxygen collected by water displacement if the water temperature is 20.0 ◦ C and the total pressure of the gases in the collection bottle is 760 torr. PH2O at 20.0 ◦ C is equal to 17.5 torr.
January 28, 2013 by Kaitlin

pre ap chem
determine the partial pressure of hydrogen if it's collected over water at 23 degrees celsius and the system has a total pressure of 724 mmHg then determine the mole fraction of water vapor in the system
March 6, 2013 by g

chemistry
A 250 ml cylinder containing C2H4 at a pressure of 1.00 atm is connected by a valve to 950 ml cylinder containing PF3 at 2.50 atm pressure. Calculate the partial pressure (atm) of Pf3 when the valve is opened.
January 27, 2008 by betty

Chemistry
A sample of oxygen is collected over water at 22 C and 762 torr. What is the partial pressure of the dry oxygen? The vapor pressure of water at 22C is 19.8 torr
July 20, 2013 by Sara

Chemistry
A sample of oxygen is collected over water at 22 C and 762 torr. What is the partial pressure of the dry oxygen? The vapor pressure of water at 22C is 19.8 torr.
July 20, 2013 by Sara

pressure
a 6.04L cylinder contains 1.71mol of gas A and 4.35 mol of gas B, at a temperature of 33.1C. calculate the partial pressure of each gas in the cylinder. assume ideal gas behavior.
September 18, 2013 by Anonymous

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