Solid cobalt(II) carbonate is put into pure water and an equilibrium is established. The Ksp for...

Solid cobalt(II) carbonate is put into pure water and an equilibrium is established. The Ksp for CoCO₃ is known to be 1.0 x 10^-10. What is the concentration of CO₃^2- ions in the equilibrium mixture of CoCO₃?

Expert Solution

CoCO3(s) ----------------> Co^2+ (aq) + CO3^2- (aq)

s s

Ksp = [Co^2+][CO3^2-]

1*10^-10 = s*s

s^2 = 1*10^-10

s = 1*10^-5 M

[CO3^-] =s = 1*10^-5 M

The solubility of CO3^2- is 1*10^-5 M >>>answer

queen_honey_blossom answered 2 years ago

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