Question

The number of atoms in 0.1 mol of a tetraatomic gas is (NA =6.02×10²³ mol¯¹)

Answer 1

Tetra -atomic gas , it means in one molecule of gas equal 4 atoms of gas .
hence,
no of mole of atoms = 4 × no of mole of molecule
no of mole of atoms = 4 × 0.1 = 0.4

no of atoms = no of mole × NA
no of atoms = 0.4 × 6.023 × 10²³
no of atoms = 2.4092 × 10²³

Answer 2

$\Huge\orange{\mathcal{\underline{\underline{answer}}}}$

→Tetra -atomic gas , it means in one molecule of gas equal 4 atoms of gas.

hence,

→No of mole of atoms = 4 × no of mole of molecule

→No of mole of atoms = 4 × 0.1 = 0.4

→No of atoms = no of mole × NA

→No of atoms = 0.4 × 6.023 × 10²³

→No of atoms = 2.4092 × 10²³