[xstrae]

Hi,

The ionization constant of benzoic acid is 6.46 x 10^-5 and K_sp for silver benoate is 2.5 x 10^-13. How many times is silver benzoate more soluble in a buffer of pH 3.19 compared to it's solubulity in pure water?

How do I do this problem? Can someone please explain.

[Borek]

How does pH influence concentration of benzoate anion? Hint: it can be protonated.