Question

define avagadros constant and molar mass .how are they related to one mole of an atom ,molecule or ion ??

Answer 1

the number of atoms or molecules in one mole of a substance, equal to 6.023 × 10^23
no of mole =w/m(atomic mass)

for sodium 1 mole =23g Na = 6.023 × 10^23 (contain atom of Na)

for hydrogen 1 mole of H=1gm h=6.023 × 10^23 (contain atom of H)

for lithium 1 mole of Li=3gm Li= 6.023 × 10^23 (contain atom of Li)