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The Kf for the formation of Co(NH3)62+ is 7.70 × 104. The Kf for the formation...

The Kf for the formation of Co(NH3)62+ is 7.70 × 104.
The Kf for the formation of Co(en)32+ is 8.70 × 1013.

Suppose a 500.0 mL solution contains 1.300 millimoles of Co(NO3)2, 100.0 millimoles of NH3, and 100.0 millimoles of ethylenediamine. What is the concentration of Co2+(aq ) in the solution?

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The Kf for the formation of Co(NH3)62+ is 7.70 × 104. The Kf for the formation of Co(en)32+ is 8.70 × 1013. Suppose a 500.0 mL solution contains 1.000 millimoles of Co(NO3)2, 200.0 millimoles of NH3, and 200.0 millimoles of ethylenediamine. What is the concentration of Co2+(aq ) in the solution?
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