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Henry Law’s Constants at a system temperature of 25°C (77°F) of oxygen is 756.7 atm/(mol/litre). Molar Weight of O2 is 31.9988 g/mol and partial fraction in air is ~ 0.21. Calculate the Oxygen dissolved in the Water at atmospheric pressure.(a) 0.0090 g/liter(b) 0.0089 g/liter(c) 0.0080 g/liter(d) 0.0099 g/liter |
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Answer» The correct choice is (b) 0.0089 g/liter Easiest explanation: Oxygen dissolved in the Water at atmospheric pressure can be calculated as: c = pg / kH co = (1 atm) 0.21 / (756.7 atm/(mol/litre)) (31.9988 g/mol) = 0.0089 g/liter. |
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