Question 5 (1 point) Zinc hydroxide is a sparingly soluble salt (pKsp- 15.5). Wi

Question

Question 5 (1 point) Zinc hydroxide is a sparingly soluble salt (pKsp- 15.5). With sufficient hydroxide concentrations, zinc hydroxide can react to form soluble complexes such as ZnOH+(B1-1 x 104) and Zn(OH)2 (2 = 2 x 1010). If a saturated solution of zinc ferrocyanide (containing excess solid zinc ferrocyanide) is made in pure water, how will the solubility of this salt change as pH is increased from -7 to 9.00? Explain your answer using equilibrium principles in your written work Solubility will be higher in the high-pH solution Solubility will be lower in the high-pH solution O Solubility will not significantly change when the pH changes

Explanation / Answer

Solubilty get lower in high pH solution. Because [OH-] increases as pH goes maximum, which lower the ionisation of Zn(OH)2 due to common ion effect .

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