Posted by **Kate** on Saturday, April 19, 2008 at 11:40am.

A tank contains 0.450 kg of oxygen(O2) compressed into a volume of 2.32 L. Estimate the gas pressure (in atm) inside the tank at 5 degrees celsius.

Do I convert 0.450 kg from grams to moles, and if I do, do I use the molar mass of oxygen?

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