How many moles of arsenic atoms are in 3.2 x 1021 atoms of arsenic?

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05-06-2017
Chemistry

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How many moles of arsenic atoms are in 3.2 x 1021 atoms of arsenic?

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JavierCollante JavierCollante · Answer 1 · 2017-06-05T18:22:19+02:00

JavierCollante JavierCollante

05-06-2017

to convert atoms to moles, we need Avogadro's number (1 mol= 6.02 x 10²³ atoms)

[tex]3.2 x10^{21} atoms (\frac{1 mol Arsenic}{6.02x10^{23} atoms} )= 0.00532 mol Arsenic[/tex]

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