Ionic Equilibriums in Water
#12

Calculate the solubility of AgBr in 1.00 mol/L NH3.
The solubility product Ksp of AgBr is 5.0x10-13.
The global stability constant b2 of Ag(NH3)2+ is 1.7x107.

a

Write the equilibrium reaction for the dissolving of AgBr and the associated equilibrium constant.

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b

Write the equilibrium reaction for the formation of the complex Ag(NH3)2+ and the associated equilibrium constant.

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c

Write the global equilibrium reaction for the reaction between AgBr and NH3 and calculate the associated equilibrium constant.

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d

Starting from an excess of AgBr and NH3 1.00 mol/L, calculate [Br]- at equilibrium.

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e

What is the solubility of AgBr?

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Complete solution

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