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Problem- Suppose sodium hydroxide was added to a 0.0057 M solution of zinc nitrate wuch that the pH of the solution is 12.89. What is the equilibrium concentration of Zn^2+?

Zn^2+(aq) + 4OH-(aq) <=> Zn(OH)4^2-(aq) ; Kf= 2.8x10^15

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Category:- Chemistry
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