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Byju's Answer
Standard IX
Chemistry
Why Classification?
What is the m...
Question
What is the mass of 1/2 mole of electron when the mass of electron given is 9.1*10^-28
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Solution
Dear Student
The 1/2 mole of electron contains = 3.012 x 10
23
electrons
The mass of an electron = 9.1 x 10
-28
g
The mass of 1/2 mole of electron =
=
9
.
1
×
10
-
28
×
3
.
012
×
10
23
=
27
.
404
×
10
-
5
g
=
2
.
74
×
10
-
4
g
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