Give reason for the following: Co2 is more soluble in aqueous NaOH so

1.	Give reason for the following: Co2 is more soluble in aqueous NaOH solution than in water.
Answer» In water, CO₂ dissolves to form carbonic acid( H₂CO₃): CO₂(g) + H₂O(l)----> H₂CO₃(aq) As the reaction is reversible, the solubility is low. In aqueous NaOH, H₂CO₃ reacts with sodium hydroxide as follows: 2 NaOH(aq)+ H₂CO₃---> Na₂ CO₃(aq)+ H₂O(l) As a result, the equilibrium involving dissolution of CO₂ in H₂O shifts forward, i.e. solubility increases.

Give reason for the following: Co2 is more soluble in aqueous NaOH solution than in water.

Answer»

In water, CO₂ dissolves to form carbonic acid( H₂CO₃):

CO₂(g) + H₂O(l)----> H₂CO₃(aq)

As the reaction is reversible, the solubility is low.

In aqueous NaOH, H₂CO₃ reacts with sodium hydroxide as follows:

2 NaOH(aq)+ H₂CO₃---> Na₂ CO₃(aq)+ H₂O(l)

As a result, the equilibrium involving dissolution of CO₂ in H₂O shifts forward, i.e. solubility increases.

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Give reason for the following: Co2 is more soluble in aqueous NaOH solution than in water.

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