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29-08-2020
Chemistry

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why is the concentration of a solid left out of the equilibrium expression for the solubility of a salt

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30-08-2020

Answer:

Its concentration remains constant

Explanation:

The concentration of a pure solid is left out of the expression for the equilibrium solubility of a salt because the concentration of a pure solid remains constant. Therefore, the activity of a pure solid is 1.

Being of a constant concentration, the pure solid is not included in equilibrium expression for the solubility of a salt.

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