Posted by Maria on Saturday, January 15, 2011 at 6:44pm.
CaSO4 ==> Ca^+2 SO4^-2
Ksp = (Ca^+2)(SO4^-2) = 4.58E?? (you had better look up the Ksp because 4.58 can't possibly be correct.)
You then add 5.00*10^-3 WHAT of Na2SO4.
Take care of the errors in this and I'll get back to it.
the pKs is correct. If you 10 to the negative power of pKs you get the Ks. I'm having a problem witht this problem as well. Any help? And yes, you add 5*10^-3 of Na2SO4.
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