Calculate the volume of `CO_2` evolved at STP when 10g of `CaCO_3` is treated with mineral acid.

Explanation

`CaCO_(3)+ 2HCI rarr CaCl_(2)+CO_(2)+H_(2)O`
Number of moles of `CaCO_(3) =(10 g)/(100 g)=0.1 mol`, Number of moles of `CO_2` evolved `=0.1(1/1)=0.1 mol`
Volume of `CO_(2)=0.1xx22.4=2.24L`