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Weight of one atom an element is `6.44 xx 10^(-23) g`. Calculate g atom of elements in `40 kg`.

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Weight of one atom an element is `6.44 xx 10^(-23) g`. Calculate g atom of elements in `40 kg`.
A. `10^(2)`
B. `10^(3)`
C. `10^(4)`
D. `10^(5)`
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Correct Answer - B
`g`-atomic weight
`=6.644xx10^(-23)xx6.023xx10^(23)=40 g`
`:. g "atom in" 40xx10^(3)kg=(40xx10^(3))/(40)=10^(3)`
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