Question

The number of atoms in 0.1 mole of a triatomic gas is _______. (N_{A} = 6.02 × 10²³ mol⁻¹)
(A) 1.800 × 10²²
(B) 6.026 × 10²²
(C) 1.806 × 10²³
(D) 3.600 × 10²³

Answer 1

No. Of atoms in1mole triatomic gas =6.023×10^23×3
Therfore,0.1 mole of that gas will have =0.1×3×6.023×10^23 atoms