Question

molecular hydrogen effuses four times as fast as gas x at same temperature find molar mass of gas X

Answer 1

Given:

Molecular hydrogen effuses four times as fast as gas x at the same temperature

Oxygen is diatomic (O2)

Oxygen's molar mass = 32.0 g/mol.

“Certain Gas” = fast/light and Oxygen = slow/heavy

Set rate expression equal to the molar mass expression

4/1 = √32/√x

X=2.0g/mol

So the molar mass of the gas X = 2.0g/mol