The mass of 1 mol of electrons is...

The mass of `1` mol of electrons is

A

`9.1 xx 10^(-28) g`

B

1.008 mg

C

0.55 mg

D

`9.1 xx 10^(-27) g`

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The correct Answer is:

C

Mass of 1 mole of e– s = Mass of one `e^(-) xx N_(A) = 9.1 xx 10^(-31) xx 6.02 xx 10^(23) kg = 54.6 xx 10^(-8) kg = 0.55 mg`

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