Answer to Question #261559 in General Chemistry for Moonlight

Question

100cm^3 of a dry gas weighing 0.128g was collected over Mercury at 1.0×10^5Nm^5 pressure and 27°C.calculate:

1)the volume of the gas at STP

2)the density of the gas at STP

3)the molecular Mass of the gas.

Answer 1

1.Standard temperature and pressure (STP) are a useful set of benchmark conditions to compare other properties of gases.

At STP, gases have a volume of 22.4 L per mole.

D= M/V