Chemistry 9701 · AS & A Level · Atoms, molecules and stoichiometry

Atoms, molecules and stoichiometry — practice question

A sample of ethyl propanoate is hydrolysed by heating under reflux with aqueous sodium hydroxide. The two organic products formed by the hydrolysis are then separated, purified and weighed. What percentage by mass does each product represent of the total mass of products obtained?

  • A$32.4\%$ and $67.6\%$
  • B$38.3\%$ and $61.7\%$
  • C$42.3\%$ and $57.7\%$
  • D$50.0\%$ and $50.0\%$

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