Ksp solubility question

[chiddler]

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For which of the following is pH likely to affect solubility? More than one answer is possible.

BaSO4
BaF2
CaCO3
MnS
AuCl3

I think all are affected, yes? Because all form conjugate weak acid or bases.

I wasn't sure about BaSO4, but HSO4(-) has a pKa of about 2 according to some googling.

Am I correct?

 

[chiddler]

also not sure about AuCl3