Verified Answer :

1 mole of Zn= 65.38 g This is the exact number but you can use 65 as well

1 x 10^-3 mole x 65.38 = 6.538 x 10^-2

1.0 x 10-3 mole of Zn x atomic mass of Zn/
Avogadro's number=

Avogadro's number= 6.02 x 10^23

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