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Question

How many C-atoms are present in 2.6 micromoles of C6H12O6?

A
3.13×1016
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B
6.26×1016
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C
1.56×1016
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D
9.39×1016|
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Solution

The correct option is D 9.39×1016|
1 mole of C6H12O6 contains 6 moles of C-atoms.
So, 2.6 micromoles of C6H12O6 will contain 2.6×6=15.6 micromoles of C-atoms.
Again, 1 mole of C-atoms = 6.022×1023 C-atoms.
Therefore, 15.6 micromoles of C-atoms =15.6×106×6.022×1023 C-atoms.
=9.39×1016 C-atoms

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