If the CFSE of is −96.0 kJ/mol, this complex will absorb maximum at wavelength nm. (nearest integer)
(h = 6.4 × 10⁻³⁴ Js, c = 3.0 × 10⁸ m/s, Nₐ = 6 × 10²³/mol)

Question

If the CFSE of  is −96.0 kJ/mol, this complex will absorb maximum at wavelength  nm. (nearest integer)
(h = 6.4 × 10⁻³⁴ Js, c = 3.0 × 10⁸ m/s, Nₐ = 6 × 10²³/mol)

Canvas Classes · Accepted Answer

Strategy:
 Relate the Crystal Field Stabilization Energy (CFSE) to the splitting energy (), and then calculate the wavelength of light absorbed from that energy gap.

Step 1: Calculate  from CFSE
The complex is , containing  ().
Its configuration is .
.
Given , we have .

Step 2: Convert Energy to Wavelength
Molar energy .
Energy per photon .
Use  to find :

.
(Note: There is an anomaly in the provided key where it states the answer is 1250, arising from a likely error in their test source or fo

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