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16. The expression of Ksp for Ni(OH)2 is: |N²+] • [OH¯]² [Ni*]* · [OH¯] DNi*] · [OH¯ None of the others

16. The expression of Ksp for Ni(OH)2 is: |N²+] • [OH¯]² [Ni*]* · [OH¯] DNi*] · [OH¯ None of the others

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
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**Question 16: Determining the Solubility Product Expression for Nickel(II) Hydroxide** The expression of \( K_{sp} \) for \( \text{Ni(OH)}_2 \) is: - **A**: \([ \text{Ni}^{2+} ] \cdot [ \text{OH}^- ]^2\) - **B**: \([ \text{Ni}^{2+}]^2 \cdot [ \text{OH}^- ]^2\) - **C**: None of the others - **D**: \([ \text{Ni}^+ ] \cdot [ \text{OH}^- ]\) - **E**: \([ \text{Ni}^{2+}]^2 \cdot [ \text{OH}^- ]\) **Explanation:** In this multiple-choice question, you are asked to select the correct expression for the solubility product constant (\( K_{sp} \)) of nickel(II) hydroxide, \( \text{Ni(OH)}_2 \). The correct expression is based on the equilibrium involving the dissociation of solid nickel(II) hydroxide in water: \[ \text{Ni(OH)}_2 (s) \rightleftharpoons \text{Ni}^{2+} (aq) + 2 \text{OH}^- (aq) \] From this reaction, the \( K_{sp} \) expression will encompass the concentration of nickel ions and the hydroxide ions raised to the power corresponding to their stoichiometric coefficients in the balanced chemical equation. Thus, the correct expression for \( K_{sp} \) is: \[ K_{sp} = [ \text{Ni}^{2+} ] \cdot [ \text{OH}^- ]^2 \] Therefore, the correct choice is **A**.
Transcribed Image Text:**Question 16: Determining the Solubility Product Expression for Nickel(II) Hydroxide** The expression of \( K_{sp} \) for \( \text{Ni(OH)}_2 \) is: - **A**: \([ \text{Ni}^{2+} ] \cdot [ \text{OH}^- ]^2\) - **B**: \([ \text{Ni}^{2+}]^2 \cdot [ \text{OH}^- ]^2\) - **C**: None of the others - **D**: \([ \text{Ni}^+ ] \cdot [ \text{OH}^- ]\) - **E**: \([ \text{Ni}^{2+}]^2 \cdot [ \text{OH}^- ]\) **Explanation:** In this multiple-choice question, you are asked to select the correct expression for the solubility product constant (\( K_{sp} \)) of nickel(II) hydroxide, \( \text{Ni(OH)}_2 \). The correct expression is based on the equilibrium involving the dissociation of solid nickel(II) hydroxide in water: \[ \text{Ni(OH)}_2 (s) \rightleftharpoons \text{Ni}^{2+} (aq) + 2 \text{OH}^- (aq) \] From this reaction, the \( K_{sp} \) expression will encompass the concentration of nickel ions and the hydroxide ions raised to the power corresponding to their stoichiometric coefficients in the balanced chemical equation. Thus, the correct expression for \( K_{sp} \) is: \[ K_{sp} = [ \text{Ni}^{2+} ] \cdot [ \text{OH}^- ]^2 \] Therefore, the correct choice is **A**.
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