Question:

The weight of one molecule of a compound $C _{60} H _{122}$ is

Updated On: Jun 23, 2023
  • $1.2 \times 10^{-20} \,g$
  • $5.025 \times 10^{23} \,g$
  • $1.4 \times 10^{-21} \,g$
  • $6.023 \times 10^{23}\, g$
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The Correct Option is C

Solution and Explanation

The molecular weight of $C _{60} H _{122}=60 \times 12+122=720+122=842$ The weight of one molecule of $C _{60} H _{122} $ $=$ molecular wt. of compound/Avogadro number $=\frac{842}{6.023 \times 10^{23}} $ $=1.4 \times 10^{-21}\, g$
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