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April 25, 2015

Homework Help: Chemistry

Posted by Mary on Monday, February 12, 2007 at 4:50pm.

Given:

Al^3+ forms a complex ALSO4+ in the presence of sulfate...
Al^3+ + SO4^2- = AlSO4+

with Kstab = 10^3.01

Question: How many ppm Al(total) would be in equilibrium with gibbsite at pH 4 and 25 degrees celsius in the presence of 10^3- m
SO4^2- (consider only this one complex and assume activities = concentrations)



Someone responded and said to look at a phase diagram but the problem is not set up for that...the answer is 3 ppm but need help with the set-up. The textbook offered very little guidance with complexes. Can someone please help. I have another problem similiar to this one but can't do that one either until I can get some feedback on this one...please...

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