Chalk is calcium carbonate, CaCO₃. (It’s basicallymade of tiny shells of ancient sea creatures.) The density ofchalk is 2.499 g/cm³. Calcium carbonate reactswith hydrochloric acid to make calcium chloride, carbon dioxide,and water.

If a stick of sidewalk chalk is 4 inches long and 0.75 inches indiameter, how many mL of 12 M HCl are needed to dissolve itcompletely?

(The molar mass of CaCO₃ is 100.1 g/mol.)