Homework Help: chemistry

Posted by shahad on Tuesday, December 21, 2010 at 4:09pm.

if BaSo4 was precipitated in solution contain 0.012 M NaCl and 0.002 M BaCl2 .calculate the sulfate concentration which is sufficient for saturate the solution with BaSo4 , if you now that the Ksp for BaSo4 equal to 1*10^-10 .

chemistry - DrBob222, Tuesday, December 21, 2010 at 5:19pm
BaSO4 ==> Ba^+2 + SO4^-2

Ksp = (Ba^+2)(SO4^-2) = 1E-10
Plug in 0.002M for (Ba^+2) [from the BaCl2] and solve for sulfate ion. This assumes you are not to make a correction for the activity coefficients and work with straight molarity. Otherwise you must calculate the activity coefficients and correct for molarities and Ksp.
chemistry - Kylie, Wednesday, January 12, 2011 at 9:37pm
ha ha doing the same problem right now
chemistry - fht, Wednesday, April 13, 2011 at 5:45pm
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