PV = nRT

a. How many moles (n) of hydrogen gas are present in a 50.0 liter steel container if the pressure is 10.0 atm and the temperature is 27.0C? (R=.082l atm/mole-K)

 

b. A sample of gas exhibits ideal behavior and occupies a volume of 350. mL at 25.0C and 1.00atm. How many moles of gas are present in the sample?

The prevailing atmospheric pressure on a plateau in Colorado is 0.702 atm. Express this pressure in pounds per square inch, kilopascals, pascals, millimeters Hg, and inches Hg. A sample of neon gas at a pressure of 0.813 atm and a temperature of 26.4 degree C, occupies a volume of 18.2 liters. If the gas is compressed at constant temperature to a volume of 6.93 liters, the pressure of the gas sample will be atm. A sample of hydrogen gas occupies a volume of 9.74 L at 49 degree C and 0.547 atm. If it is desired to decrease the volume of the gas sample to 6.89 L, while decreasing its pressure to 0.346 atm, the temperature of the gas sample at the new volume and pressure must be degree C. A sample of argon gas collected at a pressure of 1.16 atm and a temperature of 282 K is found to occupy a volume of 674 milliliters. How many moles of Ar gas are in the sample? Mol A sample of an unknown gas is found to have a density of 1.63 g/L at a pressure of 1.08 atm and a temperature of 54 degree C. the molecular weight of the unknown gas is g/mol Assume ideal behavior. A mixture of oxygen and helium gases, in a 9.78 L flask at 90 degree C, contains 3.21 grams of oxygen and 1.08 grams of helium. The pressure of helium in the flask is atm and the total pressure in the flask is atm.