A bacterial culture isolated from sewage produced 35.5mL of methane gas, CH4, at 31.0 degrees C and 753 torr. What would be the volume, in mL, of this methane at STP?

Answer 1

At STP 1 mole of an ideal gas has a volume of 22.4 liters. So find moles of methane and convert to liters.

From PV = nRT solve for n = PV/RT = (753torr)(0.0355L)/(62.36)(304) = moles

Multiply moles x 22.4 to get liters