Dissolving is an equilibrium process. If you dissolve solid potassium chloride i

Question

Dissolving is an equilibrium process. If you dissolve solid potassium chloride in water and then add sodium chloride to the solution, how will this change the equilibrium?

KCl(s) ? K+(aq) + Cl-(aq)

A. equilibrium will shift left because of the addition of sodium ions

B. equilibrium will shift left because of the addition of chloride ions

C. this change will not influence equilibrium

D. equilibrium will shift right because of the addition of chloride ions

E. equilibrium will shift right because of the addition of sodium ions

Explanation / Answer

When NaCl is added to the solution this will increase the concentration of Cl- ion in the solution.

Because equilibrium of KCl contains Cl- in it's equilibrium reaction so, to maintain equilibrium again it has to be shift left.

Hence the correct option is B equilibrium will shift left because of the addition of chloride ion.

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