Question

Name the gas evolved when ethanoic acid is added to sodium carbonate. How would you prove the presence of this gas?

Answer 1

Carbon dioxide evolves when ethanoic acid is added to sodium carbonate.
2CH₃COOH + Na₂CO₃ → 2CH₃COONa + CO₂ + H₂O
When the gas evolved during this reaction, is passed through the lime water in a test tube, the latter turns milky. This indicates that the gas evolved is carbon dioxide.