In calculating the concentration of [Cu (NH3) 4]2 + from [Cu (H2O) 4]2+, the stepwise formation constants are as follows: K1=1.90104 K2=3.90103 K3=1.00103 K4=1.50102 Calculate the overall formation constant (Kf) for the formation of [Cu (NH3) 4]2 + from [Cu (H2O) 4]2+.

Question

Chemistry

Maverick Barry

3 March, 10:20

In calculating the concentration of [Cu (NH3) 4]2 + from [Cu (H2O) 4]2+, the stepwise formation constants are as follows: K1=1.90104 K2=3.90103 K3=1.00103 K4=1.50102 Calculate the overall formation constant (Kf) for the formation of [Cu (NH3) 4]2 + from [Cu (H2O) 4]2+.

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Answers (1)

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Reilly Palmer · Answer 1

Kf = 1.11x10¹³

Explanation:

The value of Kf for a multistep process that involves an equilibrium at each step, is the multiplication of the constant of the equilibrium of each step.

Kf = K1xK2xK3xK4

Kf = 1.90x10⁴ x 3.90x10³ x 1.00x10³ x 1.50x10²

Kf = 1.11x10¹³

In calculating the concentration of [Cu (NH3) 4]2 + from [Cu (H2O) 4]2+, the stepwise formation constants are as follows: K1=1.90*104 K2=3.90*103 K3=1.00*103 K4=1.50*102 Calculate the overall formation constant (Kf) for the formation of [Cu (NH3) 4]2 + from [Cu (H2O) 4]2+.

In calculating the concentration of [Cu (NH3) 4]2 + from [Cu (H2O) 4]2+, the stepwise formation constants are as follows: K1=1.90104 K2=3.90103 K3=1.00103 K4=1.50102 Calculate the overall formation constant (Kf) for the formation of [Cu (NH3) 4]2 + from [Cu (H2O) 4]2+.