Problem: Calculate the molar solubility of AgI in 3.0 M NH 3. The overall formation constant for Ag(NH3)2+ is 1.7 X 107.

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(1) Determine the Keq equation

AgI ⇌ Ag+ (aq) + I- (aq)                           Kf = 1.7x107

Ag+ + 2NH⇌ Ag(NH3)2+                               Ksp  = 1.5x1016

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AgI (s) + 2 NH3 (aq) ⇋ Ag(NH3)2+  + I- (aq)        Keq = 1.5x1016 x 1.7x107 = 2.55x10-9


(2) Construct an ICE chart

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Problem Details

Calculate the molar solubility of AgI in 3.0 M NH 3. The overall formation constant for Ag(NH3)2+ is 1.7 X 107.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Formation Constant concept. If you need more Formation Constant practice, you can also practice Formation Constant practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Whittlesey's class at TTU.

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl 2nd Edition practice problems.