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  3. Chemistry
  4. The mass of one mole of electron is:

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Q. The mass of one mole of electron is:

ManipalManipal 2001Structure of Atom

Solution:

We know that the mass of electron
$=9.1 \times 10^{-28} g$
Hence, mass of one mole
$=9.1 \times 10^{-28} \times 6.02 \times 10^{23}$
$=54.78 \times 10^{-5} gm =0.55\, mg$