  # The Mass of one mole of electrons is?

By BYJU'S Exam Prep

Updated on: October 17th, 2023 (A) 8.0 × 10-25 g

(B) 8.4 × 10-26 g

(C) 8.5 × 10-27 g

(D) None of the Above

The mass of one mole of electrons is 5.48 × 10-7kg, So the right answer is Non of the Above. One mole of a substance is 6.022 × 10²³ units of that substance (such as molecules, atoms, or ions) is known as the Avagadro number. 6.022 × 10²³ is also referred to as Avogadro’s constant or Avogadro’s number.

### Explain Mole Concept

Use the mole idea to translate between a number of particles and mass. 1.6 × 10-19C is the charge on 1 mole of the electron, and the mass of an electron is 9.1 × 10-31 kg. We know that the charge on the electron is 1.6 × 10-19C, and the mass of the electron is 9.1 × 10-31 Kg.

Additionally, 1 mole’s Avogadro number is 6.02 × 10²³. Consequently, the mass of one mole of electrons = 9.1 × 10-31 × 6.02 × 10²³ = 5.48 × 10-7 kg. Hence, the mass of 1 mole of the electron is 5.48 × 10-7kg.

Summary:

## The mass of one mole of electrons is? (A) 8.0 × 10-25 g (B) 8.4 × 10-26 g (C) 8.5 × 10-27 g (D) None of the above

5.48 × 10-7kg is the mass of one mole of electrons. To understand and answer the questions related to the mole concept, it is important that you have proper knowledge of it. The weight of one mole is 6.02 × 10²³.

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