Question

What mass (g) of magnesium chloride (MgCl2) must react with sulfuric acid (H2SO4) to release 890.2 ml of Hydrogen chloride (HCl) gas at STP according to the following equation? Round to one decimal place.

MgCl2 (s) + H2SO4 --> MgSO4 (aq) + 2 HCl