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Question:

Calculate the mass and charge of one mole of electrons. Given: Mass of one electron = 9.10 × 10⁻³¹ kg, Charge of one electron = 1.602 × 10⁻¹⁹ coulomb

Solution:

Mass of 1 mole of electrons:
9.10 × 10⁻³¹ × 6.023 × 10²³ = 5.486 × 10⁻⁷ kg

Charge of 1 mole of electrons:
1.602 × 10⁻¹⁹ × 6.023 × 10²³ = 9.647 × 10⁴ coulomb