The atomic mass of iron oxide is 160 atomic mass units. What is the atomic mass of iron if a molecule of iron oxide consists of tow atoms of iron and three atoms of oxgen?

Answer 1

let us assume that O is 16
then 3 O = 48
then I +48 = 160
I = 160-48

Answer 2

Damon,
Is the answer the same with 2 atoms of iron?
Thank you so much....

The atomic mass of iron oxide is 160 atomic mass units. What is the atomic mass of iron if a molecule of iron oxide consists of two atoms of iron and three atoms of oxgen?

Answer 3

Oh sorry
2 I = 160 - 48

Answer 4

That is 56 which is what you will find if you look up the atomic mass of iron using Google