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A salt X is formed and a gas is evolved when ethanoic acid reacts with sodium hydrogen carbonate. Name the salt X and the gas evolved. Describe an activity and draw the diagram of the apparatus to prove that the evolved gas is the one which you have named. Also, write a chemical equation of the reaction involved.
When ethanoic acid reacts with sodium hydrogen carbonate, a brisk effervescence of carbon dioxide gas is evolved. The salt (X) formed is sodium ethanoate.
Activity:
- Take a boiling tube and add 0.5gm of sodium hydrogen carbonate to it. To this, add 2 ml of dilute ethanoic acid through a thistle funnel.
- You will notice a brisk effervescence of carbon dioxide gas.
- Take a test tube containing lime water and pass the carbon dioxide gas through it.
Observation: The lime water turning milky. Carbon dioxide is the only gas that turns lime-water milky.
Conclusion: This activity proves that carbon dioxide gas is evolved when ethanoic acid reacts with sodium hydrogen carbonate.
Given below is the experimental set up for the above activity:
The chemical equation of the reaction is given below:
$CH_3COOH + NaHCO_3 → CH_3COONa +CO_2 + H_2O$
Updated on: 10-Oct-2022
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