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For questions related to the solubility of compounds in various solvents, especially in water. Do not confuse with [solutions] or [aqueous-solution].

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Common-ion effect vs complexation

Quoting from Wikipedia, The common-ion effect refers to the decrease in solubility of an ionic precipitate by the addition to the solution of a soluble compound with an ion in common with the precipitate … That reaction is as follows, $$ \ce{ AgCl + Cl- <=> [AgCl2]-} $$ If that's the case then, how to judge the solubility with these two competing factors? …
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2 votes

Why is this equation true for a salt in acid?

It is an example for parallel reaction. The reactions taking place are $\ce{SrF2 <=> Sr^2+ +2F−}$ and $\ce{H+ +F− <=> HF}$. The $\ce{F−}$ ions formed from the first reaction reacts simultaneously with …
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