The nitrogen-to-hydrogen single bond energy is 389 kJ/mol in NH3. What is the minimum frequency of radiation having the necessary energy to break this bond?

Answer 1

I would convert 389 kJ/mol to J, then to molecules. That would be 389 kJ/mol x (1000 J/kJ) x (1 mole/6.022E23 molecule) = ?? J/molecule. Then
E = h*frequency.