Question

The weight of a molecule of a compound C₆₀H₂₂ is

(a) 842 g

(b) 1.24 x 10^-21 g

(c) 5.025 x 10²³ g

(d) \(\frac 1{6.023 \times 10^{23}}\) g

Answer 1

Correct option is (b) 1.24 x 10^-21 g

Molar mass of C₆₀H₂₂ = 742 g

Hence, weight of 1 molecule = \(\frac{742}{6.02 \times 10^{23}}\)

= 1.24 × 10^-21 g