How many mol molecules Fe203 are in 320 g Fe oxide (III)

2.01 moles Fe2O3 = 1.20145x10^24

Explanation:

Molar mass of Fe2O3 = 2*55.585 + 3*15.999 = 159.167

moles = 320/159.167 = 2.01

molecules = 2.01x6.02214076x10^23 = 1.20145x10^24 molecules

the correct name for the n3 ion is azide. azide is a polyatomic anion with a -1 charge and is written as n3 -1. it consists of three nitrogen atoms bonded together. hope i . let me know if you need anything else.

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.