Question

at NTP , 1.12 L of a gas weighs 20g. Calculate its molar mass.​

Answer 1

Concept :- At NTP, 22.4 l of a gas is the volume if 1 mole of the gas . Mass of such gas will be equal to molar mass.

SOLUTIONS

1.12 l weighs 20 g

=> 11.2 l weighs 200 g.

=>22.4 l ------- 400 g.

Hence, molar mass of the gas is 400 gram.