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Answer: 6.022×10²³ molecules Oxygen

Explanation:

To get molecules, you will need Avogadro's number.

Avogadro's number: 6.022×10²³ molecules/mole

[tex]1mol O *\frac{6.022*10^2^3molecules }{1mol} =6.022*10^2^3 molecules[/tex]