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We can calculate the number of moles of sulfur from the atomic weight and the given mass. Once we have this, the number of atoms is obtained from Avogadro's Number, NA.
moles S = 1.56 g x 1 mole/32.06 g = 0.0487 mole
atoms S = 0.0487 moles S x 6.022 x 1023 atoms/mole = 2.93 x 1022 atoms
sharon kalunda answered the question on April 8, 2019 at 13:06
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