Question

I am doing "Sodium Borohydride Reduction of aKetone"

I have to reduce Benzil (1,2 diphenylethanedione) to Hydrobenzion(1,2-diphenyl-1,2-ethanediol).

I am unsure how to calculate the limitingreagent. It said that it would be either theNaBH4 or the Benzil.

So far this is what i've gotten:

NaBH4: 50mg = 0.005g / 37.83g/mol = 0.000132mol

Benzil: 180mg = 0.180g / 210.23g/mol = 0.000856mol

i'm not sure what to do with those, or if i did it right, or ifthat is it or if i have to balance an equation or something.

Also i am unsure of how to calculate the theoreticalyield of Hydrobenzion.

Thanks!!