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If there are 8.0 mg of dissolved O2 per liter of H2O at 20 degrees C and 1 atm, calculate the number of moles of molecular O2 and the molarity of dissolved O2 per liter of H2O.

  • Chemistry -

    moles = grams/molar mass
    8.0 mg = 0.008 g
    moles = 0.008g/32 g/mol
    Then M = mols/L.

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