The solubility of 1:1 salts is measured by the equilibrium constant for the general reaction: MX(s) = Mn+(aq) + Xn-(aq) .Given the following salts and their equilibrium constants for the reaction above at 25°C,which salt is the least soluble?
A) MgCO3,Kc = 6.8 × 10-6
B) CaCO3,Kc = 5.0 × 10-9
C) SrCO3,Kc = 5.6 × 10-10
D) BaCO3,Kc = 2.6 × 10-9
Correct Answer:
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