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A solution contains 2.24×10-2 M zinc acetate and 2.24×10-2 M nickel(II) nitrate. Solid sodium cyanide is...

A solution contains 2.24×10-2 M zinc acetate and 2.24×10-2 M nickel(II) nitrate. Solid sodium cyanide is added slowly to this mixture. What is the concentration of nickel ion when zinc ion begins to precipitate? Solubility product constant data is found in the Chemistry References. [Ni2+] = ____ M

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