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A solution was made by dissolving 5.15 mg of hemoglobin in water to give final volume of 1.00 mL. The osmotic pressure of this
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What is the mole ratio of benzene (C6H6) to n-octane in the vapor above a solution of 15.0% benzene and 85.0% n-octane by mass
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The concentrations of Ca and Na in a sample of river water are 13.4 mg/kg and 5.2 mg/kg. Express the concentration in molality
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The database said the answer was 2.23 ??
here is what I did (check my work, because something isnt right): 15g C6H6/78.12gC6H6 = .19 mol C6H6 85g C8H18/114.26g C8H18= .74 mol C8H18 X-benzene: .19/.93= .204 X-octane: .74/.93= .796 pBen: .204*95=19.38 pOctane: .796*11=8.756 19.38+ 8.756= 28.136

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