The mass of a solid copper penny is 5.43 g. How many copper atoms are in the penny?

1 answer:

5 0

3.46 g Cu 1 mol Cu 6.02*10^23 atoms Cu =

63.55 g Cu 1 mol Cu

3.28*10^22 atoms Cu

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The mass of a solid copper penny is 5.43 g. How many copper atoms are in the penny?​