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Number of atoms in 560 g of Fe ("atomic ...

Number of atoms in 560 g of `Fe ("atomic mass 56 g mol"^(-1))`

A

is twice that of 70 g N

B

is half that of 20 g H

C

both of these

D

none of these.

Text Solution

Verified by Experts

The correct Answer is:
C
`560 g Fe=(560)/(56)=10` mol or `10N_(A)`
`70 gN=(70)/(14)=5` mol or `5N_(A)`
`20 gH=(20)/(1)` mol H or `20 N_(A)`
Thus both (a) and (b) are correct.
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