The oxygen dissolved in water exerts a p...

The oxygen dissolved in water exerts a partial pressure of 20 kPa in the vapour above water. The molar solubiliyt of oxygen in water is `"_____________" xx 10^(-5) m o l dm^(-3)`. ( Round off to the Nearest Integer ).
[ Given `:` Hengry's law constant `= K_(H ) = 8.0 xx 10^(4) kPa ` for `O_(2)` .
Density of water with dissolved oxygen `= 1.0 kg d m^(-3)` ]

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