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Question

Find the total number of moles of electrons in 6.023×1023 NO3 ions.

A
32
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B
31
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C
28
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D
30
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Solution

The correct option is A 32
Total number of electrons in one NO3 ion =7+(8×3)+1=32

So, the number of electrons in 6.023×1023 NO3 ions are
=6.023×1023×32
= 32 moles

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