Chemistry 0620 · IGCSE · The mole and the Avogadro constant

The mole and the Avogadro constant — practice question

Sodium hydrogencarbonate decomposes thermally as shown. $2\text{NaHCO}_3 \rightarrow \text{Na}_2\text{CO}_3 + \text{CO}_2 + \text{H}_2\text{O}$ What is the greatest mass of sodium carbonate that can be produced from $0.100$ moles of sodium hydrogencarbonate?

  • A$4.15\,\text{g}$
  • B$5.30\,\text{g}$
  • C$10.6\,\text{g}$
  • D$21.2\,\text{g}$

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