Chemistry 0620 · IGCSE · The mole and the Avogadro constant

The mole and the Avogadro constant — practice question

The equation for magnesium reacting with dilute sulfuric acid is given below. $\text{Mg} + \text{H}_2\text{SO}_4 \rightarrow \text{MgSO}_4 + \text{H}_2$ $[M_r: \text{MgSO}_4, 120]$ What mass of magnesium sulfate is produced when $12\,\text{g}$ of magnesium reacts completely with dilute sulfuric acid?

  • A$5\,\text{g}$
  • B$10\,\text{g}$
  • C$60\,\text{g}$
  • D$120\,\text{g}$

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI