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Quest

Mole Concept

A person adds 1.71 gram of sugar (C12H22O11) in order to sweeten his tea. The number of carbon atoms added are (mol. mass of sugar = 342)

1)  7.2 x 1021

2)  3.6 x 1022

3)  6.6 x 1022

4)  0.05




SOLUTION

The number of moles is the ratio of mass to molar mass.
Moles of Sugar

 

The number of molecules is the product of the number of moles and Avogadro's number NA​=6.023×1023

Number of molecules = NA /200 

Number of C atoms

 

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