Question

The mass of a quantity of Cl gas (70,906 g/mol) that occupies
50.0L at 27.0°C and 721 mm Hg is:

Answer 1

We need no of moles

Apply ideal gas equation

• PV=nRT
• n=PV/RT
• n=721(50)/8.314(300)
• n=14.4mol

So

mass

• 70.906(14.4)
• 1021g