How many moles of oxygen (o) are in a sample of 3.98x10^23 atoms

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UJey · Answer 1 · 2018-05-01T23:00:30+0000

1 mol ------- 6,02·10²³
X ------------ 3,98·10²³
X = 3,98·10²³/6,02·10²³
X= 0,6611 moles of oxygen
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