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How many moles of oxygen molecules correspond to 7.85 x 10^23 molecules of O2?

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  • How many moles of oxygen molecules correspond to 7.85 x 10^23 molecules of O2?


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Answer #1 | 08/02 2014 09:22
7.85/6.02 = 1.304 moles of O2.
Positive: 71 %
Answer #2 | 08/02 2014 08:49
Consider how many objects, no matter what they are, represent a mole of anything, 6.02 x 10^23 objects/mole of anythinig. So label what you were given and the number of objects that make up a mole. Then arrange the calculation so that the resulting answer has moles.
Positive: 65 %

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