Which action would shift this reaction away from solid calcium fluoride and toward the dissolved ions? which action would shift this reaction away from solid calcium fluoride and toward the dissolved ions? adding calcium ions adding fluoride ions removing fluoride ions removing calcium fluoride?

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08-04-2018
Chemistry

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Which action would shift this reaction away from solid calcium fluoride and toward the dissolved ions? which action would shift this reaction away from solid calcium fluoride and toward the dissolved ions? adding calcium ions adding fluoride ions removing fluoride ions removing calcium fluoride?

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mixter17 mixter17 · Answer 1 · 2018-04-17T18:13:03+02:00

Hello!

The chemical reaction for the dissolving of calcium fluoride is the following:

CaF₂(s) ⇄ Ca⁺²(aq) + 2F⁻(aq)

In this reaction, and according to Le Chatelier's principle, the action that would shift this reaction away from solid calcium fluoride and towards the dissolved ions is the removing of fluoride ions.

Le Chatelier's principle states that in an equilibrium reaction, the system would shift in the opposite direction of the changes. If we remove fluoride ions from the system, it will shift towards the formation of more fluoride ions by dissolving more Calcium Fluoride to achieve equilibrium again.

Have a nice day!