Calculate the Molar Concentration of Uncomplexed Zn²⁺ in a Solution

question 89

Multiple Choice

Calculate the molar concentration of uncomplexed Zn²⁺ in a solution that contains 0.20 mol of Zn(NH₃) ₄²⁺ per liter. The overall K_f for Zn(NH₃) ₄²⁺ is 3.8  10⁹.

• A) 6.7  10^-4 M
• B) 2.9  10^-3 M
• C) 2.0  10^-13 M
• D) 8.8  10^-3 M
• E) none of these

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