Solid KCN Is Added to a Solution Composed of 0

question 76

Multiple Choice

Solid KCN is added to a solution composed of 0.10 M Ag⁺ and 0.10 M Zn²⁺ just until a precipitate forms.What is the composition of this initial precipitate? AgCN K_sp = 2.2 × 10^-16 and Zn(CN) ₂ K_sp = 3 × 10^-16.

• A)The precipitate is pure AgCN(s).
• B)The precipitateis pure Zn(CN)₂(s).
• C)The precipitate is a mixture of AgCN(s)and Zn(CN)₂(s).
• D)The precipitate is a mixture of KCN(s)and AgCN(s).
• E)The precipitate is a mixture of KCN(s)and Zn(CN)₂(s).

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Definitions:

Convertible Bond

A type of bond that can be converted into a predetermined amount of the issuing company's equity at certain times during its life.

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