# Chemistry

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Calculate the molar solubility of MgCO3 in a solution that already contains 1.7×10−3 M sodium carbonate.
MgCO3 Ksp = 6.82 x 10-6

IMPORTANT NOTE: You must use the quadratic equation to solve this problem.

(DrBob222- thank you so much for all your help!)

• Chemistry -

.........MgCO3 ==>Mg^2+ + CO3^2-
I........solid....0.......0.0017
C.......for x.....x.........x
E.......solid.....x.........x+0.0017

6.82E-6 = (x)(0.0017+x)
Solve for x = solubility in mols/L.

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