Question

which has the highest mass?a) 50g of ironb)5 moles of N2

Answer 1

B) 5 moles of N2


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Answer 2

first we should convert moles to gram

no. of moles =
weight of the substance/molecular mass
5=weight of N2/28
weight of N2= 140 g
hence 5 moles of N2 has the highest mass

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