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Question

The mass of 1 mole of electron is:

A

0.55 mg

B

C

D

1.008 mg

Medium

Solution

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Correct option is
A

0.55 mg

1 electron weighs approximately Kg 
1 mol weighs Kg 

1 mol is particles 

So we put  in the equation instead. 

Kg 

mass of one electron

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