Emi Emi
  • 04-02-2024
  • Chemistry
College

How many atoms are in 66.9 grams of zinc?

Answer :

AmienaG95366 AmienaG95366
  • 18-09-2024

Answer

6.1621 x 10²³ atoms of zinc

Procedure

To convert from grams to moles, use the molecular weight of zinc which is 65.38 g/mol.

To convert from moles to atoms, use the Avogadro's number: 6.0221408 x 10^23 atoms/ mol.

[tex]66.9\text{ g Zn}\frac{1\text{ mol}}{65.38\text{ g}}\frac{6.0221408\text{ }\times10^{23}\text{ atoms}}{1\text{ mol}}=6.1621\text{ }\times10^{23}[/tex]

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