Question

The total mass of 1 mole of electrons is? (Mass of 1e- = 9.1 x 10-28 g)​

Answer 1

1 electron has a mass of 9.1 X 10¯³¹ kg.

1 mole has 6.023 X 10²³ particles.

So 1 mole of electrons has a mass of 9.1 X 10¯³¹ X 6.023 X 10²³ ≈ 5.481 X 10^(-7) kg or 548. 1 μg.

Multiplying it with the gravitational acceleration g will give the weight (548.1μgwt)

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