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Question

How many moles of electrons weigh one kilogram? (Mass of electron =9.108×1031 kg, Avogadro’s number =6.023×1023)


Your Answer
A
Your Answer
B
Your Answer
C
Correct Answer
D

Solution

The correct option is D

1e=9.108×1031 kg
1 mole of e=9.108×1031×6.023×1023 kg
?=1 kg
=19.108×6.023×108 moles

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