Finding the molar mass?

Question

what is the molar mass of Ba(NO3)2 and how do I get that?
Ba= 137.33
N=14
o=16

What are the math steps that I have to do?

Answer 1

Okay there is one Ba so that is 137.33

There are two moles of (NO3)
so that makes 28 moles for Nitrogen (14*2)

then because there are already three moles of O in (NO3) you have to figure it twice 16*3*2= 96.


then u add your answers together!

96+28+137.33=261.33

Answer 2

137.33+2(14)+6(16)