Calculate the Equilibrium Concentration of Zn^2(aq) in a Solution

question 120

Multiple Choice

Calculate the equilibrium concentration of Zn^2(aq) in a solution that is 0.0125 M Zn(NO₃) ₂ and 0.600 M NH₃.
Given: Zn^2(aq)  4NH₃(aq) Zn(NH₃) ₄^2(aq) K_f  2.9  10⁹.

• A)7.8  10 ^{ 12} M
• B)4.7  10 ^{ 11} M
• C)1.5  10 ^{ 8} M
• D)2.5  10 ^{ 9} M
• E)2.9  10⁹ M

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