Anonymous asked in Science & MathematicsChemistry · 1 month ago

Help with chemistry question?

What is the concentration of molecular oxygen (O2) in mol/L when atmospheric pressure is 1.0 atm and the temperature is 25 oC? Keep in mind O2 is present at a concentration of 21% (or 21 pph) in the atmosphere. 

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2 Answers

  • 1 month ago
    Favorite Answer

    Oxygen "concentration"......

    PV = nRT ..................... ideal gas equation

    n / V = P / RT ............... n/V is "concentration" in moles per litern / V = 1.00 atm / 0.08206 Latm/molK / 298K

    n / V = 0.0409 mol/L

  • Anonymous
    1 month ago

    Sorry, my answer is "Anonymous" as your post is Anonymous. There is no need for an Anonymous question in this category, Most 'Anonymous' posts are trolls, maybe yours is not, but the high likelihood is there. If you post as yourself, I would be glad to help you with any problem you have.

    I spend a lot of time on each problem, I just want to make sure it's for a worthwhile cause.

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