100 g ${\mathrm{CaCO}}_3$ reacts with 1 litre 1 N HCl. On completion of reaction how much weight of ${\mathrm{CO}}_2$ will be obtain

$\begin{array}{l}\underset{100\mathrm{g}}{{\mathrm{CaCO}}_3}+\underset{2\mathrm{N}}{2\mathrm{HCl}}\to {\mathrm{CaCl}}_2+\underset{44\mathrm{g}}{{\mathrm{CO}}_2}+{\mathrm{H}}_2\mathrm{O}\\ 100\mathrm{g}{\mathrm{CaCO}}_3\mathrm{with}2\mathrm{N}\mathrm{HCl}\mathrm{gives}44\mathrm{g} {\mathrm{CO}}_2\\ 100\mathrm{g}{\mathrm{CaCO}}_3\mathrm{with}1\mathrm{N}\mathrm{HCl}\mathrm{gives}22\mathrm{g}{\text{\hspace{0.17em}CO}}_2\end{array}$