Chemistry 5070 · O Level · The mole and the Avogadro constant

The mole and the Avogadro constant — practice question

Calcium hydroxide reacts with hydrochloric acid in the equation below: $\text{Ca(OH)}_2 + 2\text{HCl} \rightarrow \text{CaCl}_2 + 2\text{H}_2\text{O}$.
(main)[1]

Which of the following hydrochloric acid solutions would make $1.11\,\text{g}$ of calcium chloride when it reacts with excess calcium hydroxide?

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