Chemistry - Mole Concept Question with Solution | TestHub

Given
${\text{CaCO}}_{\text{3}}\text{(s)}\text{+}\text{2HCl}\text{(aq)}\to {\text{CaCl}}_{\text{2}}\text{(aq)}\text{+}{\text{CO}}_{\text{2}}\text{(g)}\text{+}{\text{H}}_{\text{2}}\text{O}\text{(l)}$
Moles present in 25 ml of 0.75 M HCl$=\frac{0.75}{1000}\times 25$
$=0.01875$moles
Since 2 moles react completely with$\text{1}\text{mole}{\text{CaCO}}_{\text{3}}\text{=}\text{100}\text{g}$
0.01875 moles react completely with${\text{CaCO}}_{\text{3}}=\frac{100}{2}\times 0.01875$
$0.9375\text{g}=937.5\text{mg}$