Chemistry

Problem

Calculate the mass of

\text{MnO}_2

and the volume of HCl of specific gravity

1.2\ \text{g mL}^{-1}

and 4% nature by mass, needed to produce 1.78 litre of

\text{Cl}_2

at STP by the reaction:

\text{MnO}_2 + 4\text{HCl} \longrightarrow \text{MnCl}_2 + 2\text{H}_2\text{O} + \text{Cl}_2