Anonymous
Anonymous asked in Science & MathematicsChemistry · 1 decade ago

What is the density of O2 at STP?

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  • Norrie
    Lv 7
    1 decade ago
    Favorite Answer

    1 mole. of O2 = 32g.

    1 mole. at STP occupies 22.4L.

    Density = Mass / Volume.

    Density of O2 at STP = 32g / 22.4L = 1.43g/L = 1.43kg/m³

  • hawk
    Lv 4
    3 years ago

    Density Of O2 At Stp

  • alpern
    Lv 4
    3 years ago

    Density At Stp

  • 1 decade ago

    D = m/V -- equation for density

    PV = nRT -- ideal gas equation

    PV = mRT / M -- where m=mass, M=molar mass

    P = mRT / VM -- put V on right hand side, under m

    P = DRT / M -- m over V equals density

    D = PM / RT -- solve for density, then plug in the numbers

    D = 1.00 atm x 32g/mol / (0.0821 Latm/molK) / 298K

    D = 1.31 g / L (at STP)

    • randi4 years agoReport

      that is incorrect, STP defines K = 273, otherwise this is the right equation to use...

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