ex: CaCO3 in Oyster shells dissolves more strongly/easily in ACID...
"But don't eat laxatives just to get calcium" hahaha
pH also affects its solubility – in an acidic solution, the equilibrium of the dissociation reaction of calcium fluoride is shifted more to the right as negative fluoride ions are removed, thus forcing the reaction in the direction of calcium fluoride dissolution. Note that pH does not affect the solubility of all salts. Typically, only weakly-soluble salts have pH-dependent solubilities. Examples include many hydroxides and carbonates.
*Really interesting "Effects of pH on Solubility" BACTERIA/TEETH/CAVITIES/FLOURIDE example in Ebbing-Gammon (746)!!!
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