The volume of hydrogen liberated at STP by treating $2.4 \mathrm{~g}$ of magnesium with excess of hydrochloric acid is _________ $\times ~10^{-2} \mathrm{~L}$

Given : Molar volume of gas is $22.4 \mathrm{~L}$ at STP.

Molar mass of magnesium is $24 \mathrm{~g} \mathrm{~mol}^{-1}$