Question

the total mass of 2 mole of electrons is (mass of 1 e= 9.1×10^-28g)​

Answer 1

Answer:

sorry I don't know the qnswer

Answer 2

Explanation:

1 e has a mass of 9.1 ×10^-28.

1 mole of electrons = 9.1×10^-28×6.023×10²³ g

= 5.48×10^-4 g

= 0.00055 g (Approx)

= 0.55 Mg

2 mole of E = 2× 0.55 = 1.1 Mg

= 0.0011 mg.

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