CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance
Problem
The number of atoms in 55.85g Fe, where the atomic mass of Fe is 55.85gmol−1, is:
(1) Twice that in 60g carbon
(2) 6.023×1022
(3) 6.023×1023
(4) 55.85×6.023×1023