Question

A gas cylinder of 20dm3 is filled with gas Z the mass of which is 25 g. When the same cylinder is filled with hydrogen gas at the same temperature and pressure the mass of the hydrogen gas is 5g, hence the molecular weight of the gas is:

(A) 20

(B) 15

(C) 10

(D) 05

Answer 1

Answer:

Answer. Therefore, the relative molecular mass of gas x is 10g. Therefore, the relative molecular mass of gas x is 10g.