Problem: The Ksp of calcium carbonate, CaCO3, is 3.36 x 10-9. Calculate the solubility of this compound in g/L.

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For this problem, we´re asked to calculate the solubility of this compound in g/L based on its Ksp of 3.36x10-9.


The compound is ionic and is a little soluble in water, with a dissociation as follows:

The Calcium ion Ca2+ is in group 2A and has a charge of +2. Carbonate then has a charge of -2:

CaCO3(s)  Ca2+(aq) + CO32-(aq)


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The Ksp of calcium carbonate, CaCO3, is 3.36 x 10-9. Calculate the solubility of this compound in g/L.

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