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February 6, 2016

# Search: 5. A breathing mixture used by deep-sea divers contains helium, oxygen, and carbon dioxide. What is the partial pressure of oxygen at 101.4 kPa if PHe = 82.5 kPa and= 0.4 kPa?

Number of results: 42,492

chemistry
A breathing mixture used by deep-sea divers contains helium, oxygen, and carbon dioxide. What is the partial pressure of oxygen at 101.4 kPa ifpHe = 82.5 kPa and pCO2 = 0.4 kPa
July 29, 2008 by natasha

holy name university
the pressure of a mixture of nitrogen,carbon dioxide and oxygen is 150 kPa.Wat is the partial pressure of oxygen if the partial pressures of the nitrogen and carbon dioxide are 100 kPa and 24 kPa,respectively?
November 27, 2010 by january

chemistry
A bearthing mixture used by deep-sea divers contains helium, oxygen, and carbon dioxide. What is the partial pressure of oxygen at 1.2 atm if PHe = 0.98 atm and PCO2 = 0.04 atm? a) 1.02 atm b) 0.12 atm c) 0.94 atm d) 0.18 atm
March 16, 2011 by Logan

chem
Nitrogen(75.5 kPa), oxygen (19.2 kPa), carbon dioxide(0.05 kPa) and water vapor(4.3 kPa) are the usual atmospheric components. What is the total atmospheric pressure in kPa?
March 30, 2008 by joe

science
a mixture of gases contains 64g of methane, 64g of oxygen and 64g of sulphur dioxide. The pressure of the mixture is 210 kpa. what is the partial pressure (in kpa) of the methane expected to be?
July 31, 2014 by olaitan daviesstunt

Chemistry
A sample of H2 is collected over water such that the combined hydrogen–water vapor sample is held at a pressure of 1 standard atmosphere. What is the partial pressure of the H2 if that of the water vapor is 2.5 kPa? A. 103.8 kPa B. 98.8 kPa C. 2.5 kPa D. 101.3 kPa B or C???
May 21, 2014 by Alexa

physical science
If the absolute pressure of a gas is 550.280 kPa, its gage pressure is A. 101.325 KPa B. 277.280 KPa C. 448.955 KPa D. 651.605 Kpa
December 2, 2007 by Josh

Physics
If a tank contains water 4 m deep, what is the pressure at the bottom of the tank? (Neglect the atmospheric pressure.) A. 39.2 kPA B. 18.9 kPA C. 4.0 kPa D. 9.8 kPA Im really lost
April 8, 2015 by Dave

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

math
Atmospheric pressure V decreases as altitude h increases. At a temperature of the pressure is 101.1kilopascals kPa at sea level, 86.4 kPa at h = 1 km, and 77.1 kPa at h = 2 km. Use a linear approximation to estimate the atmospheric pressure at an altitude of 3 km. Please round...
March 30, 2007 by Tina

Chemistry
What is the total pressure of a mixture of gases made up of CO2, O2 and H2 if the partial pressures are 22.3 kPa, 44.7 kPa and 112 kPa respectively?
April 4, 2011 by Anonymous

chemistry
A mixture of gases at a total pressure of 95 kPa contains N2, CO2, and O2. The partial pressure of the CO2 is 24 kPa and the partial pressure of the N2 is 48 kPa. What is the partial pressure of the O2?
July 29, 2008 by natasha

chemistry
A mixture of gases at a total pressure of 95 kPa contains N2, CO2, and O2. The partial pressure of the CO2 is 24 kPa and the partial pressure of the N2 is 48 kPa. What is the partial pressure of the O2?
August 4, 2008 by kayla

Chemistry
A mixture of gasses at a total pressure of 95 kPa contains N2, CO2, and O2. The partial pressure of the CO2, is 24 kPa and the partial pressure of the N2 is 48 kPa. What is the partial pressure of the O2?
February 22, 2010 by Bob

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 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
Helium is mixed with oxygen gas for deep-sea divers. Calculate the percent by volume of oxygen gas in the mixture if the diver has to submerge to a depth where the total pressure is 4.7 atm. The partial pressure of oxygen is maintained at 0.20 atm at this depth.
October 1, 2015 by HannahSparks

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

physical science
If the absolute pressure of a gas is 550.280 kPa, its gage pressure is A. 101.325 KPa B. 277.280 KPa C. 448.955 KPa
December 2, 2007 by Josh

Chemistry
the vapor pressure of ethanol at its normal boiling point would be 1)80 kPa 2)101.2 kPa 3)273 kPa 4)373 kPa would it be 1 ?
February 24, 2011 by Hannah

Chemistry
Helium - oxygen mixture is used by deep sea divers in preference to nitrogen - oxygen mixture. Why?
April 8, 2012 by Molly(its urgent)

physics
1500 cm^3 of ideal gas at STP is cooled to -20°C and put into a 1000 cm^3 container. What is the final gauge pressure? 1-11 kPa 2-40 kPa 3-113 kPa 4-141 kPa 5-240 kPa
February 24, 2014 by shirly

chemistry
1-Dinitrogen tetroxide (N2O4) dissociates according to the equation: N2O4 ⇌ 2NO2 An equilibrium reaction mixture at 25 ºC was found to have the partial pressure of N2O4 as 72 kPa whilst the partial pressure of nitrogen dioxide (NO2) was 29 kPa. Calculate Kp for the ...
July 27, 2014 by John

Chemistry
A eudiometer contains 65.0 ml sample of gas collected by the diplacement of water. The water levels inside and outside the eudiometer are the same. The atmospheric pressure is 92.5 kPa and the temperture is 23 degrees. What volume will the dry gas occupy at STP? The vapor ...
January 16, 2008 by Lauren

physics
How much absolute (total) pressure must a submarine withstand at a depth of 120m in the lake. Give answer in kPa. (Use 10m/s^2 for g). h=120m p_water = 1 g/cm^3 = 1000 kg/m^3 p_atmosphere = 101.3kPa P_total = ? P_water =density *g*h =1000*10*120 =1200000Pa =1200kPa P_total =...
December 3, 2007 by Tammy

physics
How much absolute (total) pressure must a submarine withstand at a depth of 120m in the lake. Give answer in kPa. (Use 10m/s^2 for g). h=120m p_water = 1 g/cm^3 = 1000 kg/m^3 p_atmosphere = 101.3kPa P_total = ? P_water =density *g*h =1000*10*120 =1200000Pa =1200kPa P_total =...
December 3, 2007 by Tammy

physics
1500 cm3 of ideal gas at STP is cooled to -20°C and put into a 1000 cm3 container. What is the final gauge pressure? 11 kPa 40 kPa 113 kPa 141 kPa 240 kPa
May 23, 2014 by lila

Chemistry
If 456 dm^3 of krypton at 101 kPa and 21 degrees C is compressed into a 27.0 dm^3 tank at the same temperature, what is the pressure of krypton in the tank? V1= 456 dm^3 V2= 27.0 dm^3 P1= 101 kPa P2= ? P2= 101 kPa * 456 dm^3/ 27.0 dm^3 ANSWER: 1705.78 kPa
October 22, 2007 by Lauren

chemistry
a mixture of gases at a total pressure of 95kPa contains carbon dioxide, oxygen, and nitrogen. The partial pressure of the carbon dioxide is 48kPa and the partial pressure of the nitrogen is 24kPa. What is the partial pressure of the oxygen?
June 23, 2010 by jake

science; AP Chem
I don't know how to find the kpa for 35.78 m in this question. I know its a P1V1=P2V2 question, i just need the kpa for 35.78m pls! Question: Divers know that the pressure exerted by the water increases about 100 kPa with every 10.2 m of depth. This means that at 10.2 m below ...
September 15, 2012 by Anonymous

Chemistry II
17.5 mL of oxygen gas were collected at room temperature 22C and 100.2 kPa of atmospheric pressure. a. How many moles of oxygen gas were produced? b.What is the molar volume of the oxygen gas at the conditions in the laboratory? note, how do you change kpa to atm? sorry about ...
September 14, 2009 by pasely

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 Check?
1. A sample of neon is collected at 1273.51 kPa and 12.0 oC. It has a volume of 2.25 L. What would be the volume of this gas at STP? (2.25 L) x (1273.51 kPa / 101.3 kPa) x (0 + 273.15 K) / (12.0 + 273.15 K) = 27.1 L 2.A sample of argon has a volume of 1205 cm3 when its ...
August 20, 2013 by Unknown

Chemistry
A sample of gas is in a 50.0mL container at a pressure of 86 kPa and a temperature of 25°C. The entire sample is heated to a temperature of 35°C and transferred to a new container whose volume is 65.0mL. The pressure of the gas in the second container is: 64 kPa 115.6 kPa 101....
May 5, 2011 by Bai

Chemistry combined gas law
Can someone tell me if I did this combined gas law problem correctly? What would happen to the volume of a container whose initial volume is 21.5 L at STP (standard pressure) and is introduced to conditions of 93.2 kPa and 333 K? Formula: P1 x V1 / T1 = P2 x V2 / T2 V2 = P1 x ...
March 1, 2015 by Theresa Kwnt

Chemistry combined gas law
Can someone tell me if I did this combined gas law problem correctly? What would happen to the volume of a container whose initial volume is 21.5 L at STP (standard pressure) and is introduced to conditions of 93.2 kPa and 333 K? Formula: P1 x V1 / T1 = P2 x V2 / T2 V2 = P1 x ...
March 1, 2015 by Theresa Kwnt

ap chemistry
An apparatus consists of a 2 L flask containing nitrogen gas at 25C and 819 kPa, joined by a valve to a 12 L flask containing argon gas at 25C 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 heliox deep-sea diving mixture delivers an oxygen partial pressure of 0.20 atm when the total pressure is 13.0atm .What is the partial pressure of helium in this mixture?
April 27, 2012 by Jessica

science
a balloon contains 30.0 L of helium gas at 103 kPa. What is the volume of the helium when the balloon rises to an altitude where the pressure is only 25.0 kPa?

Chem
A balloon contains 30.0 L of helium gas at 103 kPa. What is the volume of the helium when the balloon rises to an altitude where the pressure is only 25.0 kPa? Assume that the temperature remains constant
January 19, 2011 by Shrell

Chem
A balloon contains 30.0 L of helium gas at 103 kPa. What is the volume of the helium when the balloon rises to an altitude where the pressure is only 25.0 kPa? Assume that the temperature remains constant
January 19, 2011 by Shrell

Chem
A balloon contains 30.0 L of helium gas at 103 kPa. What is the volume of the helium when the balloon rises to an altitude where the pressure is only 25.0 kPa? Assume that the temperature remains constant
January 19, 2011 by Shrell

chemistry
Consider a 50 L tank which hold 20 g of hydrogen gas, 20 g of carbon dioxide gas, and 20 g of krypton gas, at a total pressure of 600 KPa. 1. which gas has the largest partial pressure? 2. Which gas the smallest average speed? 3. What is the temperature of this gas mixture? 4...
January 20, 2011 by Hunter

Chemistry
PLEASE HELP!! On a clear day at sea level, with a temperature of 25 °C, the partial pressure of N2 in air is 79 kPa and the concentration of nitrogen in water is 5.3 x 10-4 M. When the partial pressure of N2 is ________ kPa, the concentration in water is 1.1 x 10-4 M.
May 25, 2012 by Henry

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

chem
Show work 1. How many moles of oxygen will occupy a volume of 2.50 liters at 121.6 kPa and 331 K? 2. An unknown volume of chlorine gas (Cl2) is resting at 127 °C at a of pressure 152.4 kPa. If the gas weighs 191.4 g, what is the volume? 3. A 2.917 mole sample of an ideal gas ...
February 22, 2015 by theresa

Science
If A tank with a flat bottom is filled with water to a height of four meters. what is the pressure at any point at the bottom of the tank? my teacher wants me to ignore atmospheric pressure when calculating my answer A. 3.5 kPa B. 3,500 kPa C. 34.3 kPa D. 34,300 kPa
May 7, 2013 by Caitlin

Chemistry
4 L of oxygen at a pressure of 400 Kpa and 1L of nitrogen at 200 Kpa were introduced in to 2 L vessel. (A)What is the total pressure of the gases in the vessel. (B)What is the mole fraction of each gas?
September 1, 2012 by Yeneta

physics
The balloon contains 0.30 mol of helium starts at a pressure of 125 kpa and rises to an altitude where the pressure is 55.0 kpa, maintaining a constant 300 {\rm K} temperature. A)By what factor does its volume increase? B)How much work does the gas in the balloon do?
April 20, 2012 by I

physics
The balloon contains 0.30 {\rm mol} of helium starts at a pressure of 115 {\rm kPa} and rises to an altitude where the pressure is 55.0 {\rm kPa}, maintaining a constant 300 {\rm K} temperature. (A)By what factor does its volume increase? (B)How much work does the gas in the ...
April 22, 2012 by George

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
a wet gas collected over water has a volume of 900 mL at50 degrees Celsius and a pressure of 84.6 kPa. The partial pressure of water at this temperature is 12.3 kPa. What is the volume of the dry gas at 120 kPa?
April 6, 2014 by nina

Ellison
Divers know that the pressure exerted by the water increases about 100 kPa with every 10.2 m of depth. This means that at 10.2 m below the surface, the pressure is 201 kPa; at 20.4 m below the surface, the pressure is 301 kPa; and so forth. If the volume of a balloon is 2.2 L ...
February 17, 2013 by AK

Chemistry
Divers know that the pressure exerted by the water increases about 100 kPa with every 10.2 m of depth. This means that at 10.2 m below the surface, the pressure is 201 kPa; at 20.4 m below the surface, the pressure is 301 kPa; and so forth. If the volume of a balloon is 3.2 L ...
March 2, 2014 by Angela

science; AP Chem
Divers know that the pressure exerted by the water increases about 100 kPa with every 10.2 m of depth. This means that at 10.2 m below the surface, the pressure is 201 kPa; at 20.4 m below the surface, the pressure is 301 kPa; and so forth. If the volume of a balloon is 3.9 L ...
September 14, 2012 by Anonymous

Chemistry
Question: A sample of Freon-12 (CF2Cl2) occupies 2.261 x 101 L at 337 K and 2.917 x 102 kPa. Find its volume (in L) at standard temperature and pressure (STP). Equation: p1v1/t1=p2v2/t2 My Work: (2.917 x 102 kPa)(2.261x101 L)/337K = (101.3 kpa)( x )/273 k My Answer: 543.4 L Is...

chemistry
A metal tank contains three gases: oxygen, helium, and nitrogen. If the partial pressu of the three gases in the tank are 5 atm of O2, 900 mm Hg of N2, and 1.4 kPa of He what total pressure inside of the tank?
February 1, 2016 by karen

engineering
A saturated soil sample under CU test was subjected to a confining pressure of 200 kPa with back pressure (pore pressure) of 50 kPa. What would be the value of pore pressure if the confining pressure was raised to 400 kPa without drainage? If the pore pressure parameter A is 0...
December 4, 2013 by WYNN

chemistry
A high-altitude balloon contains 97.5 L of helium gas at 95.8 kPa. What is the volume when the balloon rises to an altitude where the pressure is only 21.5 kPa? (Assume that the temperature remains constant.)
March 2, 2011 by lisa

Physics
A 20-cm-diameter cylinder that is 40 cm long contains 50 g of oxygen gas at 20C. What is the number density of the oxygen? in m^-3 What is the reading of a pressure gauge attached to the tank? in kPa
April 25, 2012 by Mark

chemistry
A student collects 400 mL of oxygen at 9.80 kPa. If the temperature remains constant, what volume would this gas occupy at 9.40 kPa?
May 19, 2010 by maria

Chemistry
Here is my question and I,m hoping I worked the problem out correctly. 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. V2 = V1 x P1/P2 V2 = 15.0 L x 210 kPa/790 kPa = 3.98 L or rounded 3...
May 8, 2012 by Amy

chemistry honors
a student collects 400 mL of oxygen at 9.80 kPa. if the tempeture remains constant, what volume would this gas occupy at 9.40 kPa
May 14, 2009 by sal

Physics
An incompressible fluid is flowing through a horizontal pipe with a constriction. The velocity of the fluid in the wide section of the pipe is 4.00 m/s and the velocity of the fluid in the narrow section of pipe is 9.00 m/s. The pressure of the fluid in the wide section is 250...
November 10, 2013 by Mikhail

Chemistry
The pressure of a gaseous mixture of NH3 and N2 decreased from 1.50 kPa to 1.00 kPa after the NH3 was absorbed from the mixture. Assuming ideal gas behavior, find the composition of the original mixture.
September 12, 2012 by Dia B

chemistry
the pressure on 200 milliliters of a gas at constant temperature is changed from 50.65 kPa to 101.3 kPa. what is the new volume of the gas?
December 18, 2010 by john

Chemistry
Oxygen can be produced in the laboratory by the reaction 2 KClO3(s) → 2 KCl(s) + 3 O2(g) . How much potassium chlorate is needed to produce 2.75 L of oxygen, collected over water at 37◦C and 94.9 kPa? The vapor pressure of water at 37◦C is 6.28 kPa. 1. 0.189 ...
November 20, 2012 by Caitlin

chem
Three of the primary components of air are carbon dioxide, nitrogen, and oxygen. In a sample containing a mixture of only these gases at exactly one atmosphere pressure, the partial pressures of carbon dioxide and ni- trogen are given as PCO2 = 0.285 torr and PN2 = 593.297 ...
May 30, 2014 by a

Chemistry
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of helium is present in a helium-oxygen mixture having a density of 0.538 g/L at 25 degrees C and 721mmHg? Express your answer ...
October 10, 2010 by Ellen

AP Chem
An apparatus consists of a 4 L flask containing nitrogen gas at 32 C and 885 kPa, joined by a valve to a 8 L flask containing argon gas at 32 C and 47.5 kPa. The valve is opened and the gases mix. What is the partial pressure of nitrogen after mixing? Answer in units of kPa
March 10, 2012 by Sarah

AP chem
An apparatus consists of a 4 L flask containing nitrogen gas at 32C and 885 kPa, joined by a valve to a 8 L flask containing argon gas at 32 C and 47.5 kPa. The valve is opened and the gases mix. What is the partial pressure of nitrogen after mixing? Answer in units of kPa
March 9, 2012 by Sarah

Chemistry
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of Helium is present in a helium-oxygen mixture having a density of 0.538 g/L at 25 degrees C and 721 mmHg? Express your answer ...
October 10, 2010 by Ellen

Chemistry
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of is present in a helium-oxygen mixture having a density of 0.498 at 25 and 721 ?
October 7, 2012 by Ayesha

PHYSICS
A cylinder with a moveable piston holds 2.40 mol of argon at a constant temperature of 295 K. As the gas is compressed isothermally, its pressure increases from 101 kPa to 141 kPa. What is the final volume of the gas? I don't know where to begin. I tried using Pv=nRT: [(2.4)(8...
June 21, 2007 by Zack

chemistry
a 5.0 dm3 sample of oxygen at a pressure of 200 kPa and 2.0 dm3 sample of nitrogen at a pressure of 500 kPa are introduced into a 2.5 dm3 vessel. what is the total pressure in the vessel?
April 10, 2011 by sandra

science chemistry
A given mass of helium(gas)occupies a volume of 3,6m^3 at a pressure of 105 kPa.if the temperature remains constant,calculate volume of the gas if the pressure is decreased to 70 kPa.
June 14, 2015 by melissa

chemistry
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles)of He(g) is present in a helium-oxygen mixture having a density of 0.538g/L at 25celsius and 721mmHg ?
September 26, 2008 by tomi

chemistry
A sample of a breathing mixture for divers contained 34.3% helium, He; 51.7% nitrogen, N2; and 14.0% oxygen, O2 (by mass). What is the density of this mixture at 22°C and 748 mmHg?
October 24, 2010 by caroline

Chemistry
The Russian Mir space station used a chemical oxygen generator system to make oxygen for the crew. The system ignited a tube of solid lithium perchlorate (LiClO4) to make oxygen and lithium chloride (LiCl): LiClO4 (s) ---> 2O2 (g) + LiCl (s) If you have 500 g of LiClO4, ...
March 6, 2015 by O

chemistry
A sample of a breathing mixture for divers comtained 34.3% helium, 51.7% nitrogen, and 14% oxygen, by mass. What is the density of this mixture at 22degree celcius and 755mmHG?
May 24, 2011 by Vicky

soil mechanics
The following results were obtained from a CU on two samples: Test no. Confining stress (kPa) Deviatoric stress (kPa) Pore pressure (kPa) 1 100 400 -20 2 300 760 60 a) Determine c and ƒÖ for total stress and effective stress condition. b) What is the deviatoric stress at ...
December 4, 2013 by WYNN

chemistry
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of He is present in a helium-oxygen mixture having a density of 0.528g/L at 25 degree celsius and 721 mmHg ?
May 4, 2013 by molly

chemistry
The Russian Mir space station used a chemical oxygen generator system to make oxygen for the crew. The system ignited a tube of solid lithium perchlorate (LiClO4) to make oxygen and lithium chloride (LiCl): LiClO4 (s)  2O2 (g) + LiCl (s) If you have 500 g of LiClO4, ...
February 20, 2015 by O

chemistry
The gase in a mixture have the following partial pressures at the same volume and temperature, 1013000Pa nitrogen, 700mm argon, 1.20atm helium, 790 torr oxygen, and 0.50 atm of carbon dioxide. What is the total pressure of tyhe mixture in atm? You add them. You will have to ...
February 6, 2007 by Chrissy

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
A 500. mL sample of hydrogen gas is collected over water at 27 °C. The pressure of the hydrogen and water vapor mixture is 78.5 kPa and the vapor pressure of water at 27 °C is 3.6 kPa. What is the partial pressure of the dry hydrogen gas?
February 23, 2014 by Gabby

chemistry
Divers know that the pressure exerted buy the water increases about 100kpa with every 10.2 m of depth. This means that at 10.2 m below the surface, the pressure is 201 kpa; at 20.4 m , the pressure is 301 Kpa; and so forth. Given that the volume of a balloon is 3.5L at STP and...
February 7, 2014 by Natasha

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
the volume of a gas measured at 27 c and 101.3 kpa is 20.0 dm3 what final temperature would be required to increase the volume too 40.0 at 101 kpa
November 6, 2015 by ibrahim

Chemistry
If a balloon containing 1000 L of gas at 50 degrees Celsius and 101.3 kPa rises to an altitude where the pressure is 27.5 kPa and the temperature is 10 degrees Celsius, its volume there is?
November 10, 2014 by Matt

Thermodynamics
An insulated rigid tank contains 1.5 kg of helium at 30∘C and 500 kPa. A paddle wheel with a power rating of 0.1 kW is operated within the tank for 30 minutes. Cvof helium = 3.12 KJ/Kg.K Problem 7A. Calculate the net work done by helium, in kJ. Enter the number with ...
October 17, 2014 by Phy

physics
When you suddenly stand up after lying down for a while, your body may not compensate quickly enough for the pressure changes and you might feel dizzy for a moment. (a) If the gauge pressure of the blood at your heart is 14.3 kPa and your body doesn't compensate, what would ...
November 6, 2010 by john

Chemistry;HELP
Correct the following samples of gases to standard temperature. (Assume pressure is constant)(STP stands for standard temp and pressure which is 273K and 101.3 kPa, you do not have to think about the pressure for these four but on the last three you will have to so T2 is 273K...
August 20, 2013 by Unknown

Chemistry II
17.5 mL of oxygen gas were collected at room temperature (22oC) and 100.2 kPa of atmospheric pressure. a) How many moles of oxygen gas were produced? b) What is the molar volume of the oxygen gas at the conditions in the laboratory?
September 14, 2009 by pasely

Physical Science
During a storm, the wind exerts a 150-N force on a window that measures 1.00 m by 0.50 m. The outside air pressure is 101 kPa. What pressure, in pascals, does the wind exert on the window? a. 75 Pa b. 150 Pa c. 1.5 x 10^3 Pa d. 3.0 x 10^2 Pa e. 3.0 x 10^5 kPa
March 20, 2012 by Ariel

chemistry
The gases in a mixture have the following partial pressures at the same volume and temperature: 1,013,000 Pa nitrogen, 700. mmHg argon, 1.20 atm of helium, 790. torr oxygen, and 0.50 atm of carbon dioxide. What is the total pressure of the mixture in atm?
April 2, 2010 by fabiola

calculus
(1 pt) When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV1.4=C where C is a constant. Suppose that at a certain instant the volume is 390 cm3, and the pressure is 75 kPa (kPa = kiloPascals) and is ...
April 1, 2015 by emily

chemistry
i keep trying to do these problems and i don't understand them. please help me!! 1. Gas stored in a tank at 273 K has a pressure of 388 kPa. The save limit for the pressure is 825 kPa. At what temperature will the gas reach this pressure? A. 850 K B. 925 K C. 580 K D. 273 K 2...

Physics
When you suddenly stand up after lying down for a while, your body may not compensate quickly enough for the pressure changes and you might feel dizzy for a moment. (a) If the gauge pressure of the blood at your heart is 15.02 kPa and your body doesn't compensate, what would ...

chemistry
Exhaled breathe is a mixture of Nitrogen, oxygen, carbon dioxide and water vapor. What is the partial pressure of CO2(torr) in exhaled breathe at 37.0 degree C if the partial pressure of Oxygen is 116 torrr and that of nitrogen is 659 torr. Assume the atmospheric pressure is 1...
October 26, 2012 by carina 78

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