CBSE Class 11-science Answered
CO2 gas is more soluble in aq. NaOH solution than in water, explain.
Asked by Topperlearning User | 28 Apr, 2015, 10:46: AM
Expert Answer
CO2 dissolves in water to form carbonic acid (H2CO3). As their reaction is reversible carbonic acid (H2CO3) dissociates to give CO2 and H2O in the backward reaction.
However, with aqueous NaOH solution , H2CO3 reacts as below:
H2CO3(aq) + NaOH(aq) → Na2CO3(aq) + H2O
As a result, more of CO2 dissolves in water to form carbonic acid. This means that the gas is more soluble in aqueous NaOH than in water.
Answered by | 28 Apr, 2015, 12:46: PM
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