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Mass of 6.02xx10^(23) electrons is...

Mass of `6.02xx10^(23)` electrons is

A

0.55 mg

B

55 mg

C

`5.5xx10^(-4) g`

D

`9.8xx10^(-31)`g

Text Solution

Verified by Experts

The correct Answer is:
A, C
Mass of 1 electron `=9.1xx10^(-31)kg`
Mass of `6.02xx10^(23)` electrons
`=9.1xx10^(-31)xx6.02xx10^(23)kg`
`54.782xx10^(-8)kg`
`=55xx10^(-8)xx10^(3)g=5.5xx10^(-4)g`
`=5.5xx10^(-4)xx10^(3)mg=0.55mg`
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