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Find the number of g atoms and weight of...

Find the number of g atoms and weight of an element having `2 xx 10^(23)` atoms. Atomic mass of element is 32.

Text Solution

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`:' N` atoms have `1g` atom
`:. 2 xx 10^(23)` atoms `= (2 xx 10^(23))/(6.023 xx 10^(23)) = 0.33 g` atom
`:' N` atoms of element weight `32 g`
`:. 2 xx 10^(23)` atoms of element weigh
`= (32 xx 2 xx 10^(23))/(6.023 xx 10^(23)) = 10.63 g`
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