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August 30, 2015

Homework Help: Chemistry

Posted by Gregory on Friday, March 15, 2013 at 12:02am.

Solid Na2SO4 is added to a solution which is 0.012 M in Pb(NO3)2 and 0.048 M in AgNO3. Assume the volume remains constant. Ksp = 2.0 10-8 for PbSO4 and Ksp = 1.2 10-5 for Ag2SO4.
(a) Which compound precipitates first?

(b) What is the concentration of the first ion precipitated when the second ion starts to precipitate?

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