How many moles of mercury will be produced by electrolyzing 1.0M Hg(NO3)2 solution with a current 2.00A for 2 hours.

Answer 1

Mercury II? that is two electrons per atom.

charge=current*time=2C/sec*2*3600sec.
number electrons=charge*1/e

now it takes two electrons /atom
number atoms=numberelectrons/2
moles Hg= avag number/number atoms