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Question

A Person Adds 1.71 Gram Of Sugar. In Order To Sweeten His Tea. The Number Of Carbon Atoms Added Are


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Solution

Step 1: calculating number of moles

  • The number of moles is the mass to molar mass ratio.
  • Moles of sugar =massmolarmass=1.71342=1200mol

Step 2: Finding no. of carbon atoms

  • The number of molecules is calculated by multiplying the number of moles by Avogadro's number NA=6.023×1023
  • The number of molecules is =1200×NA
  • The number of C atoms is =12×1200×NA=12×1200×6.022×1023=3.6×1022

Hence, the number of carbon atoms in 1.71g of sugar is 3.6×1022.


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