The calculated spin-only magnetic moments of and respectively are:

Question

The calculated spin-only magnetic moments of  and  respectively are:

Canvas Classes · Accepted Answer

Strategy:
 Determine the -electron count for both Iron states under the weak field ligand . Apply .

Step 1: Find oxidation states
- : Potassium is , Hydroxide is . . The metal is  ().
- : . The metal is  ().

Step 2: Determine unpaired electrons (weak field)
The  ligand is an oxygen-donor falling strictly into the weak field side of the spectrochemical series. High-spin complexes result.
- For  (, high-spin): . Unpaired () = 5.
- For  (, high-spin): . Unpaired () = 4.

Step 3: Calculate Magneti

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