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Solubility Product

by MohammedRady97
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MohammedRady97
#1
Jul15-14, 01:08 PM
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P: 98
Why is Ksp not defined for soluble salts? Also, when an equilibrium is established between the solid, undissolved salt and the ions in the saturated solution, won't adding more solid shift the equilibrium to the left causing more ions to form?
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#2
Jul16-14, 05:44 PM
P: 540
Le Chatelier's Principle:
When a system at equilibrium is subjected to change in concentration, temperature, volume, or pressure, then the equilibrium readjusts itself to counteract the effect of the applied change and a new equilibrium is established.
Of course, when the solution is saturated, adding salt isn't going to change the concentration. The salt just piles up with the rest at the bottom of the beaker. The equilibrium of the solution has not been changed.

If you look at the interface between the solid and solution, you have created more opportunity for both the solution to precipitate and for precipitate to redissolve.


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