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April 20, 2014

Homework Help: chemistry

Posted by Dustin on Tuesday, April 8, 2008 at 4:22pm.

Calculate the xolubility of calcium sulfate in 0.010 mol/L calcium nitrate at SATP

CaSO4 ==> Ca^+2 + SO4^=
Ca(NO2)2 ==> Ca^+2 + 2NO3^- = 0.01 M
Ksp CaSO4 = (Ca^+2)(SO4^=) = ??. Look up Ksp for CaSO4.

Subsitute 0.01 for Ca^+2 and x for SO4^= and solve for solubility CaSO4. Post your work if you get stuck.


Ksp is 7.1 x 10^-5 for CaSO4

7.1x 10^-5 = (0.01)(x)

x = 0.000071/0.01

=0.0071

Why am I wrong?

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