Chemistry 0620 · IGCSE · The mole and the Avogadro constant

The mole and the Avogadro constant — practice question

Sodium hydroxide is reacted with sulfuric acid. The reaction equation is given below. $2\text{NaOH} + \text{H}_2\text{SO}_4 \rightarrow \text{Na}_2\text{SO}_4 + 2\text{H}_2\text{O}$ What volume of $0.4\,\text{mol dm}^{-3}$ sodium hydroxide will react with $50.0\,\text{cm}^3$ of $0.1\,\text{mol dm}^{-3}$ sulfuric acid?

  • A$12.5\,\text{cm}^3$
  • B$25.0\,\text{cm}^3$
  • C$50.0\,\text{cm}^3$
  • D$100.0\,\text{cm}^3$

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