Question

List two observation which you make when you add a pinch of sodium hydrogen carbonate to acetic acid in the test tube. Write balanced chemical equation

Answer 1

1) brisk effervescence is observed when sodium hydrogen carbonate is added to acetic acid, due to the production of carbon dioxide

CH3COOH+ NAHCO3 = CH3COONA + H20 + CO2

2) evolution of a colorless gas that is carbon dioxide. on passing this gas through lime water it turns milky

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Answer 2

here is your answer...

When a pinch of sodium hydrogen carbonate is added to acetic acid in a testube, two observations are made

(i) Brisk effervescence

(ii) Evolution of a colorless and odorless gas which is CO2.

CH3COOH (aq) + NaHCO3(s) + CH3 COONa (aq) + H2O (i) + CO2 (g)