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2.16 How many kilograms of oxygen and nitrogen are contained in a 200 ha lake with an average depth of 5 m, if the water is in equilibrium with the

air? Air contains 79% N, 21% O,. Assume P= 1 atm and T= 25°C. The K, for N, is 8.64x10' atm mol' L'and the K, for O, is 4.38x10' atm mol" L

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