The number of atoms in 8.93 g of zinc?

Question

Ashleigh Stuart

Chemistry

30 November, 23:30

The number of atoms in 8.93 g of zinc?

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Answers (1)

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Robert Jacobson · Answer 1

Zinc has a molar mass of about 65.38 g/mol. So we calculate the number of moles first:

moles Zinc = 8.93 g / (65.38 g/mol) = 0.1366 mol

We can calculate for the number of atoms using Avogadros number.

atoms Zinc = 0.1366 mol * 6.022 x 10^23 atoms / mol

atoms Zinc = 8.23 x 10^22 atoms