Question

The weight of a molecule of the compound $C_{60}\, H_{122}$ is $(a \times 10^{-23})$ grams. Approximate value o f $???

• A. $140$
• B. $842$
• C. $60$
• D. $80$

Answer 1

Answer: (B)

$842$

Answer 2

Molecular weight of $C_{60}\, H_{122} = 842\, g$ $6.023 \times 10^{23}$ molecules weigh $842\, g$ $1$ molecule weighs $= \frac{842}{6.02 \times 10^{23}} g$