Question

Oxugen is more slouble in water compared to nitrogen. But why is it that the composition of air in water is 33% Oxygen and 66% nirogen?

Answer 1

It is air not water because. Simple

Answer 2

Sa = ma / mw   


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Molar Weights

Oxygen - O2 : 31.9988 g/molNitrogen - N2 : 28.0134 g/mol


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The composition of air dissolved in water is 33% oxygen .