Number of results: 9,746
Chemistry
A 12.7 L sample of gas is under a pressure of 740 mm Hg at 20degrees C. What will be the volume of the gas if the pressure increases to 1.00 atm and the temperature drops to 0 degrees C
Tuesday, January 20, 2009 at 4:43pm by Mary
chm152
NH4HS(s) <=> NH3(g) + H2S(g) p = partial pressure. Kp = pNH3 x pH2S Since the total pressure is 0.766 atm, and the number of moles NH3 = number of moles H2S, won't the partial pressure of each gas be just 1/2 of the total pressure? Substitute into Kp and ...
Saturday, March 27, 2010 at 11:26am by DrBob222
chemistry
A 10.0-L stainless steel container was charged with 2.00 atm of hydrogen gas and 3.00 atm of oxygen gas. A spark ignited the mixture, producing water. What is the pressure in the tank at a constant temperature of 25°C?
Saturday, November 6, 2010 at 11:32pm by Anonymous
Chem Question?
No. You must convert psi (pounds per square inch) to atm. Although I'm not a bike racer, 115 psi sounds high for a pressure in a bike tire. I think there are 14.7 lbs/in^2 in 1 atm.
Monday, May 5, 2008 at 5:32pm by DrBob222
Thermodynamics
Hmm. An isothermal expansion. The pressure must fall by a factor of 5 during this process. The initial pressure is P1 = n R T = (5 moles/liter)*0.08206 Liter atm/mole K)* 667 K = 274 atm = 2.77*10^7 N/m^2 P2, the final pressure, is 1/5 of P1 The work done is the integral of P ...
Thursday, December 4, 2008 at 6:05am by drwls
chemistry
a 0.25 mol sample af neon gas at 18 C and 0.700 atm is heated to 40 C. the new gas pressure is 1.11 atm. what is the change in volumn of the neon gas?
Monday, February 4, 2013 at 4:38pm by james
chemistry
I am trying to find pressure. R=.0821 T=1273 K V=2 n=.0997 When I put .0997 in the PV=nRT equation I get 5.2 atm, and when I put in .09 I get 4.7 atm. Which answer should I put? Which is more accurate?
Wednesday, December 3, 2008 at 11:36pm by Jordan
A.P Chemistry
D. 2NO + O2 -> 2NO2 E. since only half of the moles of O2 will be consumed in the reaction there will be .176 mol NO2 and .088 mol O2 so... PNO2 = .176mol(.08296)(298K)/5L = .8608 atm PO2 = .088mol(.08206)(298K)/5L = .4304 atm PNO2 + PO2 = Total Pressure = 1.2912 atm
Sunday, October 22, 2006 at 11:53pm by Tom
ap chemistry
A sample of gas in a cylinder of volume 4.2 L at 316 K and 2.68 atm expands to 7.21 L by two different pathways. Path A is an isothermal, reversible expansion. Calculate the work for Path A. Answer in units of J Path B has two steps. In the first step, the gas is cooled at ...
Monday, October 8, 2012 at 1:25am by hanna
Chemistry/Equilibrium calculations
Hi! Thank you so much for your answer! according to my calculations...I got: 1 bar = 750 mm Hg = 0.986 atm. At constant T and P, volume and moles are proportional, so volume percent = mole %. Pa = (xa)(Pt) , , ,the partial pressure of "a" is equal to the mole ...
Saturday, August 16, 2008 at 12:00pm by Mary
Chemistry/Equilibrium calculations
Hi! Thank you so much for your answer! according to my calculations...I got: 1 bar = 750 mm Hg = 0.986 atm. At constant T and P, volume and moles are proportional, so volume percent = mole %. Pa = (xa)(Pt) , , ,the partial pressure of "a" is equal to the mole ...
Saturday, August 16, 2008 at 7:59am by Mary
Physical Chemistry1
One mole of an ideal monatomic gas at 300 K and 1 atm is compressed adiabatically by application of a constant external pressure of 25 atm until mechanical equiliibrium is achieved. Calculate the final temperature of the gas, as well as q, w, deltaU and deltaH for this process.
Monday, September 29, 2008 at 3:58pm by Amber
chemistry help!!!!!
Consider the following reaction: Find the equilibrium partial pressures of A and B for each of the following different values of Kp. Assume that the initial partial pressure of B in each case is 1.0 atm, and that the initial partial pressure of A is 0.0 atm. Make any ...
Sunday, March 11, 2012 at 9:57pm by student
chem
If the pressure of the gas in a 2.31 L balloon is 0.120 atm and the volume increases to 7.14 L, what will be the final pressure of the air within the balloon? Round to the nearest hundredth. Don't forget the units.
Friday, May 10, 2013 at 9:05am by vonsha
Chemistry 105
A sample of nitrogen gas in a 1.86-L container exerts a pressure of 1.32 atm at 20 C. What is the pressure if the volume of the container is maintained constant and the temperature is raised to 354 C?
Sunday, October 23, 2011 at 5:30pm by JULIE
college physics
If 61.9 L of oxygen at 17.7 degrees C and an absolute pressure of 1.55 atm are compressed to 46.4 L and at the same time the temperature is raised to 49.3 degrees C, what will the new pressure be?
Sunday, May 2, 2010 at 10:45am by Anonymous
chemistry
Anyone can guess in the ranking. How did you arrive at this ranking? Change the units to the same overall unit--it doesn't matter what you pick but I think atm would be the easiest. Then X = (partial pressure/total pressure)
Thursday, April 29, 2010 at 7:31pm by DrBob222
physics
The pressure in a fire hose is 20 atm. How high can a firefighter spray water from this hose? One atm is about 1×105 Pa. The density of water is 1.0 g/ml, or 103 kg/m3. The acceleration of gravity, g, is 9.8 m/s2.
Tuesday, November 13, 2012 at 2:12pm by matt
chemistry
A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant externam pressure of 2.00 atm at a constant temperature. Calculate the work in KJ for the gas expansion (Boyle's law applies)
Saturday, October 9, 2010 at 6:19pm by alexie
Chemistry
Having some confusion with this question....I have the answers, just not able to reach them. A flask of volume 5L is evacuated and 43.8 g of solid N2O4 is introduced at 77K. The sample is then warmed to 298K during which the N2O4 vaporizes and some dissociates to form brown ...
Saturday, April 24, 2010 at 5:09pm by Val
physics
In isothermal expansions, the product P*V = a constant. Therefore P2/P1 = V1/V2 = 50/200 = 1/4 Since you were not told the initial pressure P1, you will have to use the perfect gas law and the information given. 0.11 moles at STP (1 atm and 273K) occupies 0.11*22.4 = 2.46 ...
Monday, April 5, 2010 at 1:23pm by drwls
chemistry
Most natural gas consists of about 90% methane, CH4. Assume that the solubility of natural gas at 20 C and 1 atm gas pressure is about the same as that of CH4, 0.02 g/kg water. If a sample of natural gas under a pressure of 20 atm is kept in contact with 1.00 *10^3 kg of water...
Monday, March 8, 2010 at 1:54am by david
Chemistry: Partial Pressure
A mixture of 0.166 moles of C is reacted with 0.117 moles of O2 in a sealed, 10 L vessel at 500 K, producing a mixture of CO and CO2. The total pressure is 0.640 atm. What is the partial pressure of CO? Please provide a step by step explanation with the answer so I can ...
Thursday, October 18, 2012 at 10:07pm by M
chemistry
(1) assuming the gas is ideal, the volume becomes 1/3 of the original. (2) recall that STP, pressure is at 1 atm. assuming the gas is ideal, P1*V1 = P2*V2 where P1 = initial pressure V1 = initial volume P2 = final pressure V2 = final volume substituting, 1*2000 = (P2)*15 P2 = ...
Saturday, May 21, 2011 at 7:05pm by Jai
Chemistry
Using the van der Waals equation, determine the pressure of 436.0g of SO2(g) in a 7.30-L vessel at 725k.? For SO2(g), a=6.865L^2•atm/mol^2 and b=0.05679L/mol. (R=0.0821L•atm/(K•mol))
Monday, March 5, 2012 at 5:23pm by Cynthia
ap chemistry
I would use (P1V1/T1) = (P2V2/T2) where P2V2 and T2 are standard conditions. Solve for He pressure at the P2, V2, and T2 conditions. That will give you partial pressure He. Isn't the partial pressure of N2 just 1 atm or 760 torr?
Monday, November 22, 2010 at 2:40pm by DrBob222
chemistry
A 12 g sample of Ne is added to a container that also holds .78 mol of helium gas. What is the partial pressure of helium if the total pressure, after mixing is 2.43 atm?
Friday, March 1, 2013 at 7:09pm by john
Chemistry
A pressurized can of whipped cream has an internal pressure of 1.080 atm at 25°C. If it is placed in a freezer at -8°C, what is the new value for its internal pressure (in atmospheres)? I did this but got a negative number that wasnt correct
Thursday, November 1, 2012 at 11:14pm by Brandon
chemistry
calculate the pressure in atm of a balloon filled with 7.5g of helium gas if the baloons volume decreases to 7.5L suppose the balloons pressure and volume are originally 799 mmHg and 15L
Tuesday, May 4, 2010 at 8:25pm by Quentin
Chem B
The air in a dry, sealed 2L soda bottle has a pressure of 0.998 atm at sea level at a temperature of 34C. what will be it's pressure, if it is brought to higher altitude where the temperature is only 23C?
Monday, April 5, 2010 at 8:47pm by Courtney
Chem Help!
I really need help with this question for my chem H.W. 1) On a summer day in Breckenridge, Colorado, the atmospheric pressure is 525 mm Hg. What is this air pressure in atmospheres? (round to the hundredths place) atm
Thursday, April 10, 2008 at 12:34pm by Lisa
Math, Physics
The pressure in a fire hose is 20 atm. How high can a firefighter spray water from this hose? One atm is about 1×105 Pa. The density of water is 1.0 g/ml, or 103 kg/m3. The acceleration of gravity, g, is 9.8 m/s2.
Tuesday, November 13, 2012 at 2:29pm by Willie
AVSC
Consider the low-speed flight of the Space Shuttle as it is nearing a landing. If the air pressure and temperature of the shuttle are 1.2 atm and 300 K, respectively, what is the air density? Note: 1 atm = 101325 N/m^2. Hint: Use ideal gas law!
Monday, March 5, 2012 at 12:45pm by Terri
physics
Consider the low-speed flight of the Space Shuttle as it is nearing a landing. If the air pressure and temperature of the shuttle are 1.2 atm and 300 K, respectively, what is the air density? Note: 1 atm = 101325 N/m^2. Hint: Use ideal gas law!
Sunday, March 4, 2012 at 8:04pm by oris
physics
A hypodermic syringe contains a medicine with the density of water (figure below). The barrel of the syringe has a cross-sectional area of 2.44 10-5 m2. In the absence of a force on the plunger, the pressure everywhere is 1.00 atm. A force vector F of magnitude 1.91 N is ...
Wednesday, March 28, 2012 at 10:29pm by greg
Chemistry
A 7.30-L container holds a mixture of two gases at 45 °C. The partial pressures of gas A and gas B, respectively, are 0.342 atm and 0.527 atm. If 0.250 mol a third gas is added with no change in volume or temperature, what will the total pressure become?
Wednesday, October 31, 2012 at 8:28pm by Garcia
ASAP help CHEMISTRY
A cyclopropane-oxygen mixture is used as an anesthetic. If the partial pressure of cyclopropane in the mixture is 334 mmHg and the partial pressure of the oxygen is 1.02 atm, what is the total pressure of the mixture in torr?
Wednesday, December 19, 2012 at 10:09pm by Lisa
college
A cyclopropane-oxygen mixture is used as an anesthetic. If the partial pressure of cyclopropane in the mixture is 334 mm Hg and the partial pressure of the oxygen is 1.02 atm, what is the total pressure of the mixture in torr?
Saturday, November 13, 2010 at 9:55am by malik
Chem
At 58.8 degrees C and at a total pressure of 1.00 atm the mole percent of acetone in the vapor state above a solution of acetone and water containing 70. mol % acetone is 87.5%. Assuming the solution to obey Raoult's Law, determine the vapor pressure of pure water at this ...
Tuesday, March 27, 2007 at 8:32pm by Chris
Chemistry
Convert 1.02 atm to torr. 760 torr = 1 atm. 334 mm Hg = 334 torr. Add the two (in torr) to find total pressure.
Saturday, October 30, 2010 at 4:01pm by DrBob222
chemistry
In which one of the following processes is ΔH = ΔE? a. 2HI(g) → H2(g) + I2(g) at atmospheric pressure. b. Two moles of ammonia gas are cooled from 325°C to 300°C at 1.2 atm. c. H2O(l) → H2O(g) at 100°C at atmospheric pressure. ...
Saturday, August 15, 2009 at 10:17am by seth
chemistry
(P1V1/T1) = (P2V2/T2) You know standard pressure in kPa is 101.325. Or you may use atomospheres and use 1 atm for P2 (standard) and convert 342 kPa to atm.
Tuesday, January 11, 2011 at 7:12pm by DrBob222
Chem H.W. Help!
If You transfer a sample of a gas at 17 °C from a volume of 5.67 L and 1.10 atm to a container at 37 °C that has a pressure of 1.10 atm. What is the new volume of the gas?
Monday, May 5, 2008 at 7:04pm by Lisa
Math
At a temperature of 20°C, the volume V (in liters) of 1.33 g of O2 is related to its pressure p (in atmospheres) by the formula V(p) = 1/p (a) What is the average rate of change of V with respect to p as p increases from p = 7 to p = 8? L/atm (b) What is the rate of change...
Friday, February 4, 2011 at 4:03pm by Anonymous
calculus
At a temperature of 20°C, the volume V (in liters) of 1.33 g of O2 is related to its pressure p (in atmospheres) by the formula V(p) = 1/p (a) What is the average rate of change of V with respect to p as p increases from p = 7 to p = 8? L/atm (b) What is the rate of change...
Friday, February 4, 2011 at 12:42pm by Anonymous
Chemistry
When solid CO2 (dry ice) is allowed to come to equilibrium in a closed constant volume container at room temperature (300K), 1. the pressure rises until it reaches 1 atm 2. the pressure rises until a liquid-gas equilibrium is reached. 3. the pressure does not change. 4. the ...
Monday, January 31, 2011 at 12:58am by Douglas
PLEASE HELP-CHEMISTRY
A cyclopropane-oxygen mixture is used as an anesthetic. If the partial pressure of cyclopropane in the mixture is 334 mmHg and the partial pressure of the oxygen is 1.02 atm, what is the total pressure of the mixture in torr? ?
Wednesday, December 19, 2012 at 11:11pm by Will
Chemistry
A cyclopropane-oxygen mixture is used as an anesthetic. If the partial pressure of cyclopropane in the mixture is 334 mmHg and the partial pressure of the oxygen is 1.02 atm, what is the total pressure of the mixture in torr?
Saturday, October 30, 2010 at 4:01pm by Pat
Chemistry
Vinyl chloride (H2C=CHCl), the starting material from which PVC polymer is made, has a Henry's-law constant of 0.091mol/(L.atm) at 25 C. What is the solubility of vinyl chloride in water (in mol/L) at 25C and a partial pressure of 0.90 atm? Thank you in advance
Sunday, June 13, 2010 at 1:09pm by Deborah
science
sample of gas at 17°C from a volume of 5.68 L and 1.10 atm to a container at 37°C that has a pressure of 1.10 atm. What is the new volume of gas?
Wednesday, November 30, 2011 at 10:04pm by Anonymous
chemistry
A sample of ammonia gas at 65.5°C and 0.921 atm has a volume of 15.31 L. What is its volume when the temperature is -15.8°C and its pressure is 0.921 atm?
Wednesday, July 20, 2011 at 4:47pm by blake
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?
Thursday, March 31, 2011 at 1:16am by Toni Jones
Chem
At 850 C, the equilibrium constant Kp for the reaction: C(s)+CO2(g) >< 2CO(g) has a value of 10.7. If the total pressure in the system at equilibrium is 1.000 atm, what is the partial pressure of carbon monoxide.
Wednesday, April 22, 2009 at 2:01pm by Noemi
AP Chem
For the system CO(g) + H2O(g)<-->CO2(g) + H2(g) Kp is 1.6 at 900 K. If 0.400 atm CO(g) and 0.400 atm H2O(g) are combined in a sealed flask, what is the equilibrium partial pressure of CO2(g)?
Sunday, January 23, 2011 at 4:10pm by Andrew
Chemistry
Henry's Law constant is quote numerous ways. I will use the equation of Pgas = k*c so k = P/c = value in units of atm*L/moles. Convert 518 g/L to moles NH3 and substitute into Henry's Law equation I show above along with P of 1 atm and evaluate k. Then redo the ...
Tuesday, December 6, 2011 at 3:24pm by DrBob222
Chemistry
30.4% SO2 = mole fraction 0.304. Atm total pressure = 676.4/760 = ?? mole fraction SO2 x total P (in atm) = partial pressure SO2. mole fraction SO2 = 0.304.
Sunday, April 4, 2010 at 5:48pm by DrBob222
chem
At 20 degrees celsius the vapor pressure of dry ice is 56.5atm. If 10 g of dry ice (solid CO2) is placed in an evacuated 0.25 L chamber at a constant temperature of 20 degrees celsius, will all of the solid sublime? Is the answer no? I don't know if this is right, but I ...
Saturday, January 22, 2011 at 12:44am by jack
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?
Monday, March 1, 2010 at 6:44pm by supaflychic101
chemistry
what if the question doesnt say that the temperature and pressure stay constant. for example..3.0L of a gas has a pressure of 12.0 atm. What is the new pressure if the gas is expanded to 17.0L?....would you assume that the temperature would stay the same or is there another ...
Thursday, February 4, 2010 at 9:15pm by lelia
physics
A cylinder of volume 2.3 L contains CO2 gas at 2.2 atm. A piston is pushed into the cylinder to decrease the volume to 1.2 L with no temperature change. What is the new pressure of the gas in atm? im completely stuck on how to start this.
Wednesday, February 8, 2012 at 9:38am by mariah
chemistry
I think your units are messed up. PV = nRT It's easier to use atmospheres than kPa. R is 0.08205 L*atm/mol*K when atm is used for pressure, P. V must be in liters. I don't know what grams is doing in PV = nRT P = 750 torr/760 = ?? atm V = 200 mL = 0.200 L n = solve for...
Sunday, November 4, 2007 at 3:47pm by DrBob222
chem
a) Calculate the pressure exerted by 0.5160 mol N2 in a 1.0000 L container at 24.6°C using the ideal gas law. atm (b) Calculate the pressure exerted by 0.5160 mol N2 in a 1.0000 L container at 24.6°C using the van der Waals equation. atm (c) Compare the results. (Write...
Saturday, November 17, 2007 at 10:02pm by mel
Chemistry
I'm having trouble getting the right answer for a problem, I'm hoping that by posting my work someone can help me figure out where I've gone wrong. A two-liter soft drink bottle can withstand a pressure of 5 atm. Half a cup [approximately 120 mL) of ethyl alcohol ...
Sunday, December 31, 2006 at 10:20pm by Alexandria
Physics
The pressure gauge on a tank registers the gauge pressure, which is the difference between the interior and exterior pressure. When the tank is full of oxygen (O2), it contains 9.00 kg of the gas at a gauge pressure of 40.0 atm. Determine the mass of oxygen that has been ...
Sunday, April 11, 2010 at 4:41pm by Tmurg
chemistry
A sample of only solid ammonium chloride was heated in a 1 L container at 500 C. At equilibrium, the pressure of NH3 (g) was found to be 1.75 atm. what is the equilibrium constant, Kc, for the decomposition at this temperature? R= .08206 L atm/K Mol NH4CL (s) <---&...
Saturday, November 13, 2010 at 5:24pm by Audrey
chem
.If the pressure of the gas in a 2.31 L balloon is 0.120 atm and the volume increases to 7.14 L, what will be the final pressure of the air within the balloon? Round to the nearest hundredth. Don't forget the units. i really tried but i need help
Thursday, May 23, 2013 at 9:39am by nene
Chemistry
A mixture of gases contains 0.4 mole of N2, 0.5 moles of O2, and 0.7 moles of H2. What is the total pressure if partial pressure of O2 is 1.3 atm?
Thursday, March 15, 2012 at 2:50am by HELP!!!
Chem
A gas at a pressure of 1 atm, a volume of 1 , and a temperature of 25 C. What would happen to the pressure if the volume were reduced to 0.5 and the temperature increased to 250 C ?
Saturday, February 27, 2010 at 1:16am by bob
Science
you have 25 L cylinder of helium at a pressure of 135 atm and a temperature of 23 degrees celcius. the He is used to fill balloons toa volume of 1 L at .982 atm and 27 degrees celcius. how many balloons can be silled with He?
Thursday, February 10, 2011 at 7:16pm by Uru
chem
At a pressure of 2 atm, hydrogen gas occupies a volume of 8 L. What pressure must the gas be under if the volume is increased to 10 L? Don't forget the units.
Friday, May 10, 2013 at 9:03am by vonsha
Chemistry
The pressure of a gas is 35 atm at a temperature of 48 (degrees) C with constant volume. What will the new pressure be if the temperature is increased to 36 (degrees) C?
Friday, July 23, 2010 at 12:34am by bob
Chemistry :((((
a gas occupies a volume of 5L at a temp. of 20C and a pressure of 1atm. what volume would it occupy at a temp. of 30C and a pressure of 1.1 atm.
Thursday, April 12, 2012 at 10:36pm by Amanda
chemistry
A sample of gas has an initial volume of 14.7L at a pressure of 1.02 atm. If the sample is compressed to a volume of 10.2L, what will its pressure be?
Tuesday, February 28, 2012 at 6:38pm by kim
pressure
4 mL of gas in a piston (syringe) at 10oC and 0.75 atm is heated and expanded to 85oC and 8 mL. What is the pressure of the gas after the expansion?
Sunday, November 6, 2011 at 11:08pm by nja
chemistry
a mixture of gases contains 0.4 mole of N2, 0.5 moles of O2, and 0.7 moles of H2. What is the partial pressure of O2 if the total pressure is 1.3 atm?
Tuesday, October 19, 2010 at 12:40am by Sammy
chemistry
A tank has a pressure of 20.3 atm at a temperature of 22.6 oC. After heating, the temperature rises to 52.7 oC. What is the new pressure?
Sunday, September 5, 2010 at 11:22am by Mely
chemistry
pi = MRT Convert ug vitamin B12 to mols mols = grams/molar mass. Then mol/L = M and substitute into the first equation and solve for pi in atm. Here is a site to convert atm to H2O. http://www.aqua-calc.com/convert/pressure/atmosphere
Monday, February 25, 2013 at 2:32am by DrBob222
Chemistry 105
A sample of gas has an initial volume of 33.0 L at a pressure of 1.1 atm. If the sample is compressed to a volume of 10.0 L, what will its pressure be? (Assume constant temperature.)
Sunday, October 23, 2011 at 5:24pm by JULIE
Chemistry
The solubility of nitrogen in water is 6.9 x 10^-4 at exactly 1 atm pressure. What is the solubility of nitrogen under .80 atmp pressure? I don't know where to start with this problem, what formula do I use?
Wednesday, February 13, 2013 at 3:38pm by Sara
chemistry
I don't understand your question. The pressure of Ar in the flask is 820 torr. I guess we could call that its vapor pressure. Remember to convert 820 torr to atm and T to kelvin.
Saturday, November 24, 2012 at 2:37pm by DrBob222
Vapor pressure of liquids
benzaldehyde has a normal boiling point of 179 C and a critical point at 422C and 45.9 atm. estimate its vapor pressure at 139C.
Tuesday, January 25, 2011 at 2:51am by Chem 2011
chemistry
A rigid ball that contained 25.0 liters of air at 22°C and 6.25 atm pressure was placed in an oven at a temperature of What was the new pressure inside the ball
Thursday, July 8, 2010 at 9:09pm by Anonymous
Chemistry
Calculate the osmotic pressure of a 6.0 × 10-2 M solution of NaCl at 20°C (293 K). Okay when I set up problem MRT....I get something totally different from the answer 2.9 atm. Could u please show me your set up to get to 2.9 atm? Thanks a billion!!
Saturday, October 29, 2011 at 4:43pm by Chemistry Chick
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?
Thursday, January 19, 2012 at 8:19pm by Lisa
chemistry
Use PV = nRT For P: The total P of the system is the pressure of the gas + pressure of water vapor. Pgas alone = total P - vapor pressure H2O P gas = 855 - 44.6 = ?? Now convert P in mm to P in atmospheres. P mm/760 = P atm. V is in liters. Don't forget to convert T to ...
Saturday, August 15, 2009 at 6:15am by DrBob222
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
Sunday, November 28, 2010 at 10:30pm by anon
college
One mole of oxygen gas is at a pressure of 5.10 atm and a temperature of 32.0°C. (a) If the gas is heated at constant volume until the pressure triples, what is the final temperature?
Wednesday, February 24, 2010 at 1:28am by Anonymous
Chemistry- partial pressures
A sample of gas collected over water at 42 degrees C occupies a volume of one liter. The wet gas has a pressure of .986 atm. The gas is dried and the dry gas occupies 1.04 L with a pressure of 1.00 atm at 90 degrees C. Using this information, calculate the vapor pressure of ...
Monday, January 1, 2007 at 3:45pm by Dave
chemistry
The solubility of nitrogen gas in water at 25 °C and 1 atm is 6.8!10"4 mol/L. If the partial pressure of nitrogen gas in air above water is 0.76 atm, what is the concentration of dissolved nitrogen?
Monday, November 7, 2011 at 1:48pm by Anonymous
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?
Sunday, October 23, 2011 at 5:27pm by JULIE
chemistry
A steel tank contains carbon dioxide at 34 celsius and is at a pressure of 13.0 atm. Determine the internal gas pressure when the tank and its contents are heated to 100 celsius
Monday, October 18, 2010 at 1:07pm by lavonne
Chemistry
If a gas has a volume of 500 ml and pressure of 1.5 atm, what will the pressure be if the volume is reduced to 250 ml?
Friday, May 18, 2012 at 11:47am by Bob
chemistry
A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant external pressure of 2.00 atm at a constant temperature. Calculate the work in units of kJ for the gas expansion. (Hint: Boyle's law applies) Please explain thoroughly! thank you!
Monday, October 4, 2010 at 6:57pm by Jack
Chemistry
A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant external pressure of 2.00 atm at a constant temperature. Calculate the work in units of kJ for the gas expansion. (Hint: Boyle's law applies) Please explain thoroughly! thank you!
Sunday, October 3, 2010 at 11:16pm by Jack
chemistry
A saturated solution was formed when 4.48×10−2 L of argon, at a pressure of 1.0 atm and temperature of 25 C, was dissolved in 1.0 L of water. Calculate the Henry's law constant for argon in mol/atm. I got an answer of 1.4*10^-3, maybe my units are wrong, ...
Thursday, September 17, 2009 at 8:28pm by RE
CHEM
A GAS TAKES UP 25.2 L AT 25*C. AT 25*c THE GAS CAN ALSO TAKE UP 12.2lAT 1520 TORR. WHAT WAS THE PRESSURE IN ATM, OF THE ORIGINAL SAMPLE? I GOT 4.1S ATM. IS THAT RIGHT?
Wednesday, August 1, 2012 at 7:17pm by liz
college physics
The edge size of the box is a = (0.041)^(1/3) = 0.345 m and the area of a side is 0.1189 m^2 Pressure increases by a factor (273+181)/(273+20) = 1.5495 The new pressure will be 1.5495 atm Multiply the final pressure (in Pascals) by the box side area, for the force in Newtons. ...
Sunday, May 2, 2010 at 9:43am by drwls
chemistry
A gas is confined to a container with a massless piston at the top. (Part C figure) A massless wire is attached to the piston. When an external pressure of 2.00 atm is applied to the wire, the gas compresses from 4.90 to 2.45 L. When the external pressure is increased to 2....
Friday, March 25, 2011 at 10:09pm by Lina
chem
At what temperature will a 1.0 g sample of neon gas exert a pressure of 500 torr in a 5.0 L container ? or At what temperature will a 0.0470 mol of a gas fill a balloon to 1.20 L under 0.988 atm pressure ?
Monday, May 14, 2012 at 9:47pm by katie
Chemistry
A sample of gas is confined to a cylinder housed with a movable piston. Initially, the gas occupies a volume of 2.7 L at 6.0 atm and 25°C. Calculate the volume of the gas sample if the pressure is reduced to 1.8 atm and the temperature decreased to 20°C.
Sunday, April 28, 2013 at 4:10pm by Kiera
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