UPSEE Solved Model Paper 4

Weight of Cl2 = 71 g
Molecular weight of Cl2 = 71 g/mol
Number of moles of Cl2
=

71g

71g∕gatom

= 1 moles
The Avogadro's number is 6.023 × 1023 molecules/mol.
The number of atoms of Cl2
= 2 atoms/molecule × 1 mol × 6.023 × 1023 molecules/mol
= 1.205 × 1024 atoms