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July 23, 2014

Search: A sample of gas occupies 13 L under a pressure of 1.3 atm. What would th..

Number of results: 24,151

Chemistry
A sealed cylinder of gas contains nitrogen gas at 1.00 10e3 kPa pressure and a temperature of 25C. The cylinder is left in the sun, and the temperature of the gas increases to 60.C. What is the new pressure in the cylinder?
March 9, 2012 by Dontae

Chemistry
what would an open manometer look like in which the pressure of the gas sample is 34.5 kPa higher than the atmosphere?
January 6, 2011 by al

Chemistry
i am not understanding how to solve this how many moles of gas are present in a sample that is at 756 mm Hg pressure, has a volume of 5.3 L, and a temperature of 38 degrees C?
April 3, 2013 by Angel

chemistry
A 33.0g sample of nitrogen, N2 has a volume of 42.0L and a pressure of 640.mmHg. What is the temperature, in kelvins and degrees Celsius, of the gas?
April 24, 2013 by John

chemistry
a 2.50mL sample of dry air in a cylinder exerts a pressure of3.00atm at room temperature. without changing the temperature, a piston is moved until the pressure in the cylinder is reduced to 1.00atm. what is the final volume of the gas?
March 11, 2013 by jm

chemistry
a 2.50mL sample of dry air in a cylinder exerts a pressure of3.00atm at room temperature. without changing the temperature, a piston is moved until the pressure in the cylinder is reduced to 1.00atm. what is the final volume of the gas?
March 11, 2013 by jm

chemistry
a sample of iron occupies a volume of 10.0cm3. if the density of iron is 7.9 g/cm3 what is the mass of the sample
October 22, 2010 by Anonymous

chemistry
Assume that 0.0200 mole of a gas is collected in the lab by water displacement. If the temperature of the gas is 26.0oC and the total pressure in the gas tube is 745 mm Hg (including water vapor), what is the volume in liters of the dry gas? (Use the ideal gas law.)
March 31, 2014 by Anonymous

chemisrty
Q6) A 10 L container contains a mixture of 0.8 g of He and 8 g of Ar at 0 oC. a) (1 pt) Calculate the total pressure of the gas mixture. b) (1 pt) Calculate the partial pressure of each gas in the gas mixture. c) (1 pt) If the initial total pressure of the container was 1.5 ...
January 21, 2012 by lyan

Science
When scientists record the volume of a gas, why do they also record the temperature and the pressure? Because the P and T affect the volume of the gas. A measure of matter is mass, to get the mass of gas one must know volume, temperature, and pressure. The density of a gas is ...
October 28, 2006 by Electra

chemistry
17 liters of a gas is at an initial temperature of 67 degrees C and a pressure of 88.89 atm, what will be the pressure of the gas if the tempetature of the gas is raised to 94 degrees C and the volume of the gas is decreased to 12 liters? 177 atm 36.3 atm 108 atm 136 atm 219 atm
December 5, 2011 by Anonymous

Chemistry
Please!!! its extremely urgent. i do not need answers, only how to do it A sample of nitrogen gas (N2) kept in a container of volume 10.1 L and at a temperature of 20.3C exerts a pressure of 3.1 atm. Calculate the number of grams of gas present. Round to one decimal place, do...
October 17, 2011 by Javier

Physics
As its volume is doubled from an initial value of 0.088 m3, a sample of gas is held at a constant pressure of 3.4 104 Pa by heating. Then, while a constant volume is maintained, the gas is cooled back to its initial temperature. The work that the gas does on the environment ...
June 21, 2012 by Kaley

physics
a flask contains helium gas at 11k. the flask is thermally isolated and the gas is allowed to escape slowly through a narrow tube until the pressure within the flask is 0.98 atm and the temperature is 4.2K. if the gas is ideal, find the initial pressure for the flask to be ...
June 14, 2013 by annie

REETA
A 2.10 mol sample of oxygen gas is confined to a 5.10 L vessel at a pressure of 7.99 atm. Find the average translational kinetic energy of an oxygen molecule under these conditions in (j/mol) When i was working this out i tried using pv=nrt to find the temperature which i got ...
October 21, 2008 by CHEMISTRY

physics
A 2.10 mol sample of oxygen gas is confined to a 5.10 L vessel at a pressure of 7.99 atm. Find the average translational kinetic energy of an oxygen molecule under these conditions in (j/mol) When i was working this out i tried using pv=nrt to find the temperature which i got ...
October 21, 2008 by reeta

Chemestry @
A 27.6ml volume of chlorine gas is collected over water at 23 C and 750 torr. The mass of the gas is 78.4mg. The vapor pressure of water is 21 torr. a)what is the pressure of the chlorine gas? b) what volume does the chlorine gas occupy? c)How many moles of chlorine gas are ...
October 26, 2008 by Please help

Algebra
Boyle's Law says that the volume of a gas varies inversely with the pressure. When the volume of a certain gas is 4L, the pressure is 165 kPa(kilopascals). What is the volume when the pressure is 60 kPa?
June 7, 2011 by Rachal

chemistry
A container holds 1.00 mol O2, and the pressure in the container is 2.00 atm. A student adds 60.0 g of gas Y to the container. The total pressure (of O2 and gas Y) is 3.00 atm. What is the molar mass of gas Y? (V and T constant)
March 21, 2011 by Kamila

Chemistry
Calcium carbonate, CaCO3(s), decomposes upon heating to give CaO(s) and CO2(g). A sample of CaCO3 is decomposed, and carbon dioxide is collected in a 250 mL flask. After decomposition is complete, the gas has a pressure of 1.3 atm at a temperature of 31℃. How many ...
May 5, 2011 by Veronica

physics
A cylinder with a movable piston holds 2.75 mol of argon gas at a constant temperature of 295 K. As the gas is compressed isothermally, its pressure increases from 101 kPa to 121 kPa. Find (a) the final volume of the gas, (b) the work done by the gas, and (c) the heat added to...
October 31, 2011 by Matthias Schwartzkopf

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 ...
October 8, 2012 by hanna

physics
Suppose 3 mols of neon (an ideal monatomic gas) at STP are compressed slowly and isothermally to 0.19 the original volume. The gas is then allowed to expand quickly and adiabatically back to its original volume. Find the highest temperature attained by the gas. Find the lowest...
January 26, 2011 by david

Chem
Ca(s) + 2H+(aq) → Ca2+(aq) + H2(g) An experiment is performed to determine the volume of hydrogen gas produced when calcium reacts with excess HCl(aq) as represented by the net ionic equation above. A 0.0720 g sample of pure calcium and a solution of 1.0 M HCl(aq) were ...
April 23, 2013 by Jess

Science
When the number of gas particles in a container with constant volume decreases, does the pressure of the gas increases? If the number of gas particles at constant pressure increases, will the volume of the gas decrease? What is the relationship between gas particles and volume...
October 9, 2013 by Sam

Chemistry
A 0.08425 g sample of gas occupies 10.0-mL at 292.5 K and 1.10 atm. Upon further analysis, the compound is found to be 13.068% C and 86.932% Br. What is the molecular formula of the compound? Identify the geometry around each carbon atom. a)trigonal pyramidal b)bent c)...
November 17, 2012 by Nikki

Physics
A gas sample is confined to a chamber with a movable piston. A small load is placed on the piston and the system is allowed to reach equilibrium, shown above. If the weight of the piston and the load is F=70.0 N and the piston has an area of A=9.00x10-4 m2, what is the ...
January 17, 2010 by Brittany

chemistry
A 450 ml gas sample STP is compressed to 200 ml and the temp. Increased to 42 degrees celcuis. What is the new pressure.
May 17, 2010 by theo greene

chemistry
A sample of neon gas at 1.20 atm compresses from 0.250 L to 0.125 L. If the temperature remains constant, what is the final pressure?
November 14, 2011 by Mallory

chemistry
2.85 sample of an unknown chlorofluorocarbon is decomposed and produces 558 of chlorine gas at a pressure of 756 and a temperature of 298 .
July 22, 2012 by des

college chem
A sample of O2 gas was collected over water at 23 degrees celsius and 772 torr. what is the partial pressure of the O2?
April 29, 2014 by ashley

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
the gas contained in a piston is compressed from an original volume of 1.15 L to a new volume of 0.45 L. Assuming that the temperature of the gas remains constant what is the new pressure exerted on the gas if the original pressure was 2.15 atm?
November 26, 2012 by jen

chemistry
the gas contained in a piston is compressed from an original volume of 1.15 L to a new volume of 0.45 L. Assuming that the temperature of the gas remains constant what is the new pressure exerted on the gas if the original pressure was 2.15 atm?
November 26, 2012 by jen

Chemistry
An ideal gas is contained in a cylinder with a volume of 5.0 102 mL at a temperature of 30.C and a pressure of 710. torr. The gas is then compressed to a volume of 38 mL, and the temperature is raised to 827C. What is the new pressure of the gas? torr
April 4, 2013 by Rashid

Math
I'm having trouble with a math problem, it says: A quantity of gas has a volume of 0.20 cubic meter and an absolute temperature of 333 degrees kelvin. When the temperature of the gas is raised to 533 degress kelvin, what is the new volume of the gas? Thank You. Assuming ...
July 5, 2005 by Mirayah Robinson

chemistry
a mixture of 3 gases a, b and c is at a total pressure of 6.11 atm the partial pressure of gas a is 1.68 atm, that of gas b is 3.89 atm. what is the partial pressure of gas c?
May 24, 2010 by jordan

Gen Chemestry
A 27.6 ml volume of chlorine gas is collected over water at 23 C and 750 torr. The mass of the gas is 78.4 mg. The vapor pressure of water is 21 torr. a) What is the pressure of the chlorine gas? b) How volume does the chlorine gas occupy? c) How many moles of chlorine gas are...
October 25, 2008 by Roth

chemistry
A sample of O2 gas is placed in a sealed 1.00 L flask and pressure is measured as temperature is changed. The data are plotted and the slope of the resulting line is equal to 0.00500 atm/K. The line passes through the origin of the graph. There are g of O2 gas in the flask. (R...
January 31, 2008 by roxanne

chemistry
Gas X has a density of 2.60g/L at STP. Determine the molar mass of this gas. Sorry there was some typos on the previous question. please show me again steps by steps. thank you =] Same answer. You just left the g off the density. One mole of ANY (ideal) gas occupies 22.4 L at ...
March 21, 2007 by michelle

Chemistry
350 calories of heat is added to a sample of nitrogen gas, and the temperature is increased by 89 degrees celsius. what is the mass of the sample of nitrogen gas? For this we'll presume that you are either given, or can find the specific heat of Nitrogen gas. Then plug them in...
October 31, 2006 by Allie

physics- vry urgent
An ideal monatomic gas initially has a temperature of 333 K and a pressure of 7.15 atm. It is to expand from volume 581 cm3 to volume 1360 cm3. If the expansion is isothermal, what are (a) the final pressure (in atm) and (b) the work done by the gas? If, instead, the expansion...
April 9, 2009 by nirali

Chemistry
Need help solving this problem. A 0.188g sample of unknown metal, X (s), produced 71.4ml of hydrogen gas when reacted with HCl according to the equation: X(s)+2HCl(aq)--> XCl2(aq)+H2(g) The gas was collected over water at 23 degrees C. The levels of water inside and outside...
September 5, 2011 by Louis

Physics
A cylinder with a valve at the bottom is filled with an ideal gas. The valve is now opened and some of the gas escapes slowly. The valve is then closed, after which the piston is observed to be at a lower position. Assume that the system is in thermal equilibrium with the ...
November 21, 2010 by Carl

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
A sample of unknown gas effuses in 10.6 min. An equal volume of H2 in the same apparatus under the same conditions effuses in 2.42 min. What is the molar mass of the unknown gas?
October 7, 2010 by Missy*

Chemistry Combined Gas Law
Hi so im reviewing or our long test tomorrow on combined gas law and gay lussac's well here, combined gas law i find it (maybe ) confusing to do this one, because theres no right answers because it is a practice exercise.. what i know on combined gas law is that pressure is ...
January 28, 2014 by Joy

Chemistry
A gas is confined to a cylinder under constant atmospheric pressure, as illustrated in the following figure. When the gas undergoes a particular chemical reaction, it absorbs 824J of heat from its surroundings and has 0.62kJ of P−V work done on it by its surroundings. ...
October 2, 2013 by Yuki

Chemistry
Two Flasks containing the same inert gas are at the same temperature and pressure of 800 mmHg. One flask has volume of 1.0 L and the other, a volume of 2.0 L. Enough volatile liquid is injected into each of the flasks to allow phase equilibrium to be established. No leakage ...
January 31, 2007 by Jason

Edited questionSCIENCE
Speeds up or slows down? By stirring a gas in a liquid, its solubility ____________ the dissolving process. High or low? A gas's solubility is is faster in a liqud when under __________ pressure. How do the methods of speeding the rate of solution for dissolving a solid in a ...
March 10, 2009 by Twilight lover

statistics
A random sample of the houses in a particular city is selected and the level of radon gas is measured for each house in the sample. The values collected are given below in parts per million (ppm). Experience has shown that radon gas level is approximately normally distributed ...
March 26, 2012 by tea

Chemistry
A gas occupies a volume of 0.500L at 125 degrees Celsius and 0.443 atm. What mathematical expression will yield the correct temperature at 0.750 L and 0.689 atm? Is it the combined gas law of P2V1/T1=P2V2/T2?
December 6, 2011 by Lisa

Chemistry
A sample of O2 gas is placed in a sealed 1.00 L flask and pressure is measured as temperature is changed. The data are plotted and the slope of the resulting line is equal to 0.00400 atm/K. The line passes through the origin of the graph. There are (blank) g of O2 gas in the ...
July 3, 2008 by Jessica

physics
An ideal monatomic gas initially has a temperature of 338 K and a pressure of 6.96 atm. It is to expand from volume 435 cm3 to volume 1310 cm3. If the expansion is isothermal, what are (a) the final pressure (in atm) and (b) the work done by the gas? If, instead, the expansion...
April 21, 2011 by niki

physics
An ideal monatomic gas initially has a temperature of 338 K and a pressure of 6.96 atm. It is to expand from volume 435 cm3 to volume 1310 cm3. If the expansion is isothermal, what are (a) the final pressure (in atm) and (b) the work done by the gas? If, instead, the expansion...
April 21, 2011 by niki

physics
An ideal monatomic gas initially has a temperature of 338 K and a pressure of 6.96 atm. It is to expand from volume 435 cm3 to volume 1310 cm3. If the expansion is isothermal, what are (a) the final pressure (in atm) and (b) the work done by the gas? If, instead, the expansion...
April 22, 2011 by niki

chem
the pressure 15 meters under water is 248 kPa what is the pressure in atm what is the pressure in mmHg
November 13, 2012 by christie

Physics
The atoms in a gas (gas constant R=8.31 J/mol-K) can be treated as classical particles if their de Broglie wavelength is much smaller than the average separation between the particles d. Consider monatomic Helium gas (mHec2 = 3727MeV), molar mass 4g/mol) at 1.0 atmosphere ...
December 7, 2009 by Bun

Chem
A bicycle tire is filled with air to a pressure of 100 psi at a temperature of 19C. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58C. The volume increases by 4%. What is the new pressure of the tire? Convert the temps to Kelvins, then use ...
September 30, 2006 by Mew

Chemistry
A 1.56L sample of Neon gas at STP is heated to 100C, what is the final pressure assuming the volume stays the same?
April 25, 2011 by Terrie

ap chemistry
To what temperature must a sample of helium gas be cooled from 123C to reduce its volume from 3.7 L to 0.27 L at constant pressure? Answer in units of K
February 9, 2013 by cheri

atmospheric pressure
How many moles of gas must be forced into a 3.9 ball to give it a gauge pressure of 9.8 at 25? The gauge pressure is relative to atmospheric pressure. Assume that atmospheric pressure is 14.5 so that the total pressure in the ball is 24.3 . Express your answer using two ...
November 19, 2012 by Anonymous

chemistry
A quantity of 0.020 mole of a gas initially at 0.050 L and 20 degrees Celsius undergoes a constant-temperature expansion until its volume is 0.59 L. Calculate the work done (in joules) by the the gas if it expands (b) pressure of 0.20 atm. (C) If gas in (b) is allowed to ...
December 28, 2010 by Anna

Chemistry
A quantity of 0.020 mole of a gas initially at 0.050 L and 20 degrees Celsius undergoes a constant-temperature expansion until its volume is 0.59 L. Calculate the work done (in joules) by the the gas if it expands (b) pressure of 0.20 atm. (C) If gas in (b) is allowed to ...
December 28, 2010 by Cynthia

Physics
An ideal gas is squeezed slowly from state A (pressure-600 kPa, volume- 1 L) to B ( pressure-400kPa, volume- 0.5 L). What is the work done or received by the gas?
March 27, 2010 by Chris

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
At a temperature of 30.C, a gas inside a 1.50 L metal canister has a pressure of 760 torr. If the temperature is increased to 55C (at constant volume), what is the new pressure of the gas?
February 21, 2012 by Kyle2

Chemistry
A compressed gas cylinder contains 1.00 103 g of argon gas. The pressure inside the cylinder is 2096 psi (pounds per square inch) at a temperature of 19C. How much gas remains in the cylinder if the pressure is decreased to 656 psi at a temperature of 27C?
February 9, 2012 by Elizabeth

college
One mole of oxygen gas is at a pressure of 5.10 atm and a temperature of 32.0C. (a) If the gas is heated at constant volume until the pressure triples, what is the final temperature?
February 24, 2010 by Anonymous

Chemistry
Calculate the volume at s.t.p. occupied by a gas 'Q' originally occupying 153.7cc at 287K and 750mm pressure [vapor pressure of gas 'Q'at 287K is 12mm of Hg]
June 29, 2012 by Mayank Goswami

chemistry
The volume at stp occuppied by a gas Q originally occupying 153.7dm at 287k and 750mm pressure (vapor pressure of gas Q at 287k is 12mm of Hg)
November 22, 2012 by arpit

chemistry
The volume at stp occuppied by a gas Q originally occupying 153.7dm at 287k and 750mm pressure (vapor pressure of gas Q at 287k is 12mm of Hg)
November 22, 2012 by arpit

Chemistry
A sealed flask containing water and N2 gas in equilibrium is at a temperature of 25C. If the concentration of N2 gas in the solution is 1.4 x 10-3 M, what is the partial pressure of N2 gas in the container? (kH for N2 gas in water is 6.1 x 10-4 M/atm at 25C.)
November 7, 2011 by Sarah

Chemistry
I need help with these two problems: At a given pressure and temperature, it takes 4.55 min for a 1.5 L sample of He to effuse through a membrane. How long does it take for 1.5 L of H2 to effuse under the same conditions? A gas-filled weather balloon with a volume of 58.7 L is...
October 5, 2008 by Amy

Calculus 2
The pressure P of a gas is related to its volume V by the formula P=k/V where k is a constant. A quantity of gas with an initial volume of 1 cubic meter and a pressure of 2.5 newtons per square meter expands to a volume of 16 cubic meters. Find the work done by the gas.
November 7, 2012 by Heather

Chemistry
My teacher gave us the answer to a chemistry problem and i cannot figure out how she got the answer. Can you help me work out this problem so i can better understand it. A gas under an initial pressure of 0.60atm is compressed at a constant temperature from 27L to 3.0L. The ...
March 19, 2012 by Steven

Chemistry
It takes 200. seconds for a sample of carbon dioxide to effuse through a porous plug and 280. seconds for the same volume of an unknown gas to effuse under the same conditions. What is the molar mass of the unknown gas? Enter your answer to 3 significant figures.
February 18, 2013 by Olivia

chem
takes 190. seconds for a sample of carbon dioxide to effuse through a porous plug and 295 seconds for the same volume of an unknown gas to effuse under the same conditions. What is the molar mass of the unknown gas? Enter your answer to 3 significant figures.
April 29, 2013 by sarah

chemistry
A compressed gas cylinder contains 1.00 103 g of argon gas. The pressure inside the cylinder is 2035 psi (pounds per square inch) at a temperature of 15C. How much gas remains in the cylinder if the pressure is decreased to 610. psi at a temperature of 30.C? Thanks for the ...
April 14, 2010 by kristen

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
if i have 5.6 liters of gas in a piston ata pressure of 206 kPa and compress the gas until its volume is 4.8L, what will the new pressure inside the piston be? how do i that problem?
March 10, 2012 by bobby

Chemistry
Calculate the volume at s.t.p. occupied by a dry gas 'Q' originally occupying 153.7cc at 287K and 750mm pressure [vapor pressure of gas 'Q'at 287K is 12mm of Hg]
June 30, 2012 by Mayank

Physics..
A container of gas is at a pressure of 1.3x10^5 Pa and a volume of 6.0m^3. How much work is done by the gas if it expands at constant pressure to twice its initial volume? Please help me I really dont know what to do,,,
December 11, 2013 by cheesecake:)

Chemistry
At a temperature of 57oC, a gas inside a 5.30 L metal canister has a pressure of 4000 torr. If the temperature is decreased to 13oC (at constant volume), what is the new pressure of the gas?
February 26, 2014 by Chelsey

College Physics
A monatomic ideal gas is compressed adiabatically from a pressure of 1.39 105 Pa and volume of 260 L to a volume of 39.0 L. What is the new pressure of the gas?
December 6, 2011 by John

science
If the absolute pressure of gas is 550.280 kPa, it's gage pressure is what? Subtract atmospheric pressure from that to get gage pressure. Atmospheric pressure varies with altitude and weather, but the average atmospheric pressure, at sea level, is 101.325 kPa. 550.280 - 101....
July 1, 2005 by Naomi

Chemistry
Consider an ideal gas encloesd in a 1.00 L container at an internal pressure of 10.0 atm. Calculate the work, w, if the gas expands against a constant external pressure of 1.00 atm to a final volume of 20.0 L. w = ____ J now calculate the work done if this process is carried ...
February 10, 2012 by Lauren

chemistry
The volume of a sample of a gas collected over water at 32 Celsius and 752 torr is 627 ml. What will the volume of the gas be when dried and measured at STP? (Vapor pressure of water at 32 Celsius = 35.7 torr)
May 1, 2013 by Cory

Chemistry
A pocket of gas is discovered in a deep drilling operation. The gas has a temperature of 480c and is at a pressure of 12.8 atm. What volume of gas is required to provide 18.0 L of gas at the surface where the conditions are 22 C and 1.00 atm?
January 15, 2008 by Lauren

chemistry
a gas has a volume of 95 mL at a pressure of 930 torr. What volume will the gas occupy at standard temperature if pressure is held constant?
January 26, 2014 by Mikhail

chemistry
A 10-g mass of krypton occupies 15.0 L at a pressure of 210 kPa. Find the volume of the krypton when the pressure is increased to 790 kPa.
August 4, 2008 by kayla

Chemistry
A 10 gram of mass of krypton occupies 15.0 L at a pressure of 210 kPa. What is the volume of the krypton when the pressure is increased to 790 kPa?
February 22, 2010 by Bob

chemistry
Condition Pressure Volume Temperature Comment initial 1.0 atm 22.4 L 273 K 1 mole of N2 gas fills the tank. final 3.0 atm 22.4 L 273 K 2 moles of O2 gas have been added to the 1 mole of N2 gas in the tank. Key Questions 7. What was the initial pressure caused by the nitrogen ...
March 21, 2013 by alex

Chemistry
At a temperature of 57oC, a gas inside a 5.30 L metal canister has a pressure of 4000 torr. If the temperature is decreased to 13oC (at constant volume), what is the new pressure of the gas? I know you use the formula (P1/T1) = (P2/T2)
February 26, 2014 by Chelsey

chemistry
2H2O2 --> 2H2O +O2 If a 250mL bottle of hydrogen peroxide solution containing 3% H2O (by mass) completely decomposed how many liters of gas would it generate. Assume that one mole of gas occupies a volume of 22.4 L and that the density of the solution is 1 g/mL.
October 6, 2009 by Anonymous

chemistry
what pressure would have to be applied to a 27.2 ml sample of gas at 25 Celcius and 1.00atm to compress its volume to 1.ooml without a change in temperature
February 23, 2013 by Gerry

chemistry
A 0.286g sample of carbon dioxide, CO2, has a volume of 585mL and a pressure of 495mmHg . What is the temperature, in kelvins and degrees Celsius, of the gas?
October 23, 2013 by rose

chemistry
A 0.286g sample of carbon dioxide, CO2, has a volume of 585mL and a pressure of 495mmHg . What is the temperature, in kelvins and degrees Celsius, of the gas?
October 24, 2013 by ellie

AP Chemistry
To what temperature must a sample of helium gas be cooled from 110 degrees C to reduce its volume from 4.9 L to 0.7 L at constant pressure? Answer in units of K
February 16, 2014 by Gabriella

chem
A sample of carbon dioxide with a mass of 0.91 g was placed in a 335 mL container at 363 K. What is the pressure exerted by the gas? Answer in units of atm
May 30, 2014 by reis

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