A gas sample has a mass of 7.40 g and a volume of 3.96 L at 16°C and 0.982 atm. Find the volume of the gas at STP and the molar mass.

A) Volume at STP: 4.45 L, Molar mass: 28.0 g/mol
B) Volume at STP: 8.90 L, Molar mass: 56.0 g/mol
C) Volume at STP: 2.23 L, Molar mass: 14.0 g/mol
D) Volume at STP: 16.0 L, Molar mass: 32.0 g/mol