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Do two moles of N(3) and two moles N rep...

Do two moles of `N_(3)` and two moles N represent the same quantity ?

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No, they donot represent the same quantity
Two moles of `N_(2)` represent `2 xx N_(A)` molecules of `N_(2) or 4 xx N_(A)` atoms of N
Two moles of N represent `2 xx N_(A)` atoms of N.
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