need help with solubility gen chem probs

Started by snooper92 Jul 20, 2008

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snooper92

Full Member

10+ Year Member

15+ Year Member

Jul 20, 2008

I get confused with solubility problems.

Can anyone explain the following?

1) How much Cr042- must be added to a liter of a saturated solution of AgCl in order to precipitate Ag2Cr04?

2) Find the Ka of HCN, given that a .20 M solution of HCN is .002% ionized.

3) Silver hydroxide, AgOH, is a slightly soluble ionic compound whose Ksp= 1.5 x 10^-8. What is the minimum pH at which AgOH will precipitate from a solution, 0.010M in Ag+?

Thank you.