55. Solving a chemistry problem
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5.5 At 20 C, one volume of water dissolves 0.3405 volumes of oxygen and 0.01696 volumes of nitrogen at 1.013*105 N/m2. Calculate the percentage of O2 and N2 (mass %) when dissolving air containing 20.9 vol. % O2 and 79.1 vol% N2 in water.
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