Question

what is the mole concept?

Answer 1

The mole is the amount of a substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon-12; its symbol is "mol."

Answer 2

mole is the Amount of a substance of the system which contains as many elementary entries are there are atoms in 0.0 12 kilogram of carbon -12 ,symbol is "mol".