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Chemistry Problem

2008-02-05, 10:29 PM #1

Dash_rendar

Xizor's Drinking Buddy

Posts: 2,867

I cant quite get it.

Quote:

Can Fe^2+ and Mn^2+ be seperated by precipitating FeS(s) and not MnS(s)? Assume [Fe^2+] = [Mn^2+] = [H2S] = 0.10M. Choose an [H3O+] that assures maximum precipitatioin of FeS(s) but not MnS(s). Will the seperation be complete?

I have a Kspa for each (solubility product under acidic conditions):

FeS = 6x10^2
MnS = 3x10^7

2008-02-06, 6:10 AM #2

saberopus

Likes Kittens. Eats Fluffies

Posts: 12,306

bumped for idk but gl ,'/