The ksp of nickel (ii) carbonate, nico3, is 1.42 * 10-7. calculate the molar solubility of this compound.

Answer is: molar solubility of nickel (II) carbonate is 3.77·10⁻⁴ M.

Chemical reaction:NiCO₃ (s) → Ni²⁺ (aq) + CO₃²⁻ (aq).

Ksp = 1.42·10⁻⁷.

s (NiCO₃) = ? M.

s (NiCO₃) = s (Ni²⁺) = s (CO₃²⁻) = x.

Ksp = s (Ni²⁺) · s (CO₃²⁻).

Ksp = x · x.

1.42·10⁻⁷ = x².

x = √1.42·10⁻⁷ = 3.77·10⁻⁴ M.