If the mass od one neutron is 1.00866 amu, the mass of one proton is 1.00728 amu, and the mass of 12C nucleus is 11.99671 amu, calculate the binding energy for the 12C nucleus.

Question

If the mass od one neutron is 1.00866 amu, the mass of one proton is 1.00728 amu, and the mass of 12C nucleus is 11.99671 amu, calculate the binding energy for the 12C nucleus. 
A-1.10x10^18 kJ/mol
B-8.90x10^9
C-1.10x10^15
D-8.90x10^12

I keep getting 8.90x10^15 as my answer. I am getting the wrong answer or is there a typo in the question?

bobpursley · Answer

Are you figuring the units as kJ/mole or J/mole?