The ksp of cobalt(ii) carbonate, coco3, is 1.0 × 10-10. calculate the solubility of this compound in g/l.

When Cobalt carbonate dissolves in water it dissociates as follows;
CoCO₃ --> Co²⁺ + CO₃²⁻
if the molar solubility of CoCO₃ is x then solubility of Co²⁺ is x and CO³⁻ is x as well.
Molar solubility is the number of moles of solute that are dissolved in 1 L of solution.
the formula for solubility product constant - ksp is as follows
ksp = [Co²⁺][CO₃²⁻]
ksp = x²
ksp = 1.0 x 10⁻¹⁰
x² = 1.0 x 10⁻¹⁰
x = 1.0 x 10⁻⁵
therefore molar solubility of CoCO₃ is 1.0 x 10⁻⁵M
molar mass of CoCO₃ is 119 g/mol
therefore solubility of CoCO₃ is 119 g/mol x 1.0 x 10⁻⁵ mol/L = 1.19 x 10⁻³ g/L

The number of protons in the nucleus of the atom is equal to the atomic number.The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom is equal to the sum of the number of protons and neutrons in the nucleus.

Explanation:

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