Question

a student added sodium hydrogen carbonate Solution in ethanoic acid taken in a test tube And the gas evoled was tested with a burning splinter write the chemical equation for the evolution of this gas and it's effect on burning splinter

Answer 1

the chemical equation is given above.
the burning splinter will either burn with pop sound or the flame will extinguish

Answer 2

The reaction between sodium hydrogen carbonate Solution and ethanoic acid causes evolution of Carbon dioxide.

• When an acid and base reacts with each other it leads to salt formation and liberation of carbon dioxide gas due to the neutralization process.
• In the given case, sodium hydrogen carbonate is base whereas ethanoic acid is acid.
• Thus when these two reactants are reacted, it leads to the formation of sodium acetate (salt), carbon dioxide and water.
• The chemical equation for the evolution of the gas is as follows:

$NaHCO_3+CH_3COOH\rightarrow CH_3COONa+CO_2+H_2O$

• As carbon dioxide doesn't supports combustion, when a burning splinter is bought near the test tube, it gets extinguished.

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