The chemical explosive nitroglycerine has the formula C3H5(NO3)3. How many oxygen atoms are in the formula unit for this compound?

A. 3
B. 6
C. 9
D. 12

C. 9

3 answers

I agree.
you have the correct answer and are looking for an explanation?

there are three nitrates of formula NO3. since there are 3 oxygen atoms per nitrate, and 3 nitrates total. 3x3 = 9 oxygen atoms per nitroglycerin
thank you