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Hrishant Goswami Grade: 10
        How many moles of electron weighs one kilogram?

a. 6.023 × 1023
b. 1/9.108× 1031
c. 6.023/9.108× 1054
d. 1/(9.108 ×6.023)× 108
3 years ago

Answers : (1)

Kevin Nash
askIITians Faculty
332 Points
										Sol. Mass of an electron

= 9.108 × 10-31 kg
∵ 9.108 × 10-31 kg = 1.0 electron
∴ 1 kg = 1/〖9.108 ×10〗^(-31) electrons
= 〖10〗^31/9.108 × 1/〖6.023 ×10〗^23
= 1/(9.108 ×6.023)× 108 mole of electrons.
3 years ago
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