A Solution Is Formed by Mixing 50

question 32

Multiple Choice

A solution is formed by mixing 50.0 mL of 10.00 M NaCN with 50.0 mL of 2.0 × 10^-3 M CuNO₃. Cu(I) forms complex ions with cyanide as follows: Calculate the following concentrations at equilibrium:
-[Cu(CN) ₂^-]

• A) 1.0 × 10^-3 M
• B) 4.0 × 10^-12 M
• C) 2.0 × 10^-7 M
• D) 2.0 × 10^-3 M
• E) none of these

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The amount of money a company retains after subtracting all its expenses, taxes, and costs from its total revenue.

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