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How many moles of oxygen molecules correspond to 6.90E20 molecules of O2?

April 26, 2017Chemistry correspond Mathematics molecules moles O2 oxygen

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How many moles of oxygen molecules correspond to 6.90E20 molecules of O2?

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Divide by Avogadro’s number (6.022E23 molecules/mol) to get the number of molecules of O2. If they want the molecules of O2, that’s your answer. If they’re asking for ATOMS of O2, be sure to multiply by two to account for the fact that O2 is diatomic.