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How many moles of electron weight one kilogram ?

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How many moles of electron weight one kilogram ?

(a)  6.023 x 1023

(b) 1/9.108 x 1031

(c)  6.023/9.108 x 1054

(d) 1/9.108 x 6.023 x 108

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Correct option (d) 1/9.108 x 6.023 x 108

  • Mass of an electron = 9.108 x 10-31 kg
  • No.of electrons in 1 kg = 1/9.108 x 10-31

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