How many moles of Pb are in 4.71 x 10^21 Pb atoms?

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0.00782, 2.84 x 10^45, 207.2, or 6.022 x 10^23

1 Answer

  • The first one. There are 6.022 x 10^23 atoms in a mole, so you divide 4.71 x 10^21 by 6.022 x 10^23.

    Source(s): I’m currently taking chem.

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