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Calculate the number of copper atoms in a penny.
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Calculate the number of copper atoms in a penny.

User Amasuriel
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Since a mole of atoms contains 6.0221 x 1023 atoms, there are 2.2452 x 1022 zinc atoms and 5.9230 x 1020 copper atoms in a penny, for a total of 2.3044 x 1022 atoms in a penny. Public Domain Image, source: NASA/JPL-Caltech
User Mohsenme
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