Calculate the solubility (in m) of cobalt(ii) hydroxide, co(oh)2(s) in h2o. ksp = 1.10×10-16 at a specific temperature.

3.018 x 10⁻⁶ M.

Explanation:

Co(OH)₂ → Co²⁺ + 2OH⁻.

∵ Ksp = [Co²⁺][OH⁻]² = (s)(2s)² = 4s³.

∴ 4s³ = 1.10 x 10⁻¹⁶.

∴ s³ = 1.10 x 10⁻¹⁶/4 = 2.75 x 10⁻¹⁷.

∴ s = ∛(2.75 x 10⁻¹⁷) = 3.018 x 10⁻⁶ M.

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explanation:

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