Chemistry Practice Problems Bond Order Practice Problems Solution: Use the molecular orbital diagram shown to determi...

Solution: Use the molecular orbital diagram shown to determine the bond order for NO +. Is NO+ paramagnetic or diamagnetic? In molecular orbital names, s = sigma and p = pi.a. 3, paramagneticb. 2, paramagneticc. 2.5, paramagneticd. 2, diamagnetice. 3, diamagnetic

Problem

Use the molecular orbital diagram shown to determine the bond order for NO +. Is NO+ paramagnetic or diamagnetic? In molecular orbital names, s = sigma and p = pi.

a. 3, paramagnetic

b. 2, paramagnetic

c. 2.5, paramagnetic

d. 2, diamagnetic

e. 3, diamagnetic

Solution

Construct the molecular orbital diagram of NOand calculate for the bond order and determine if its paramagnetic or diamagnetic


Step 1: Calculate the total number of valence electrons present.

Step 2: Draw the molecular orbital diagram.

Step 3: Determine if there's an unpaired MO (paramagnetic or diamagnetic)

Step 4: Calculate the bond order of the molecule/ion. Recall that the formula for bond order is:


Bond order = 12# e- in bonding MO - # e- in anti-bonding MO 



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