Calculate the Molar Concentration of Uncomplexed Zn²⁺ in a Solution $\times$

question 34

Multiple Choice

Calculate the molar concentration of uncomplexed Zn²⁺ in a solution that contains 0.20 mole of Zn(NH₃) ₄²⁺ per liter and 0.0116 M NH₃ at equilibrium.The overall K_f for Zn(NH₃) ₄²⁺ is 3.8 $\times$ 10⁹.

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

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