Calculate number of atoms in 52g of Helium - Chemistry - Some Basic Concepts of Chemistry

Question

Calculate number of atoms in 52g of Helium

Kirti Gogia · Accepted Answer

The molar mass that is the mass of 6 022 X 1023 atoms
of helium is 4g
Hence 1 mole of He = 4 g of He = 6 022 X 1023 atoms
of He
1 g of He = (6 022 X 1023) / 4 atoms of He
52 g of He = (6 022 X 1023X 52 ) / 4 atoms of He
= 7 829 X 1024 atoms of He