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DO value of a water sample is 6 ppm. Cal...

DO value of a water sample is 6 ppm. Calculate the weight of dissolved oxygen present in 100 Kg of water sample.

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DO value 6 ppm means, 10^6g of water contains 6g of dissolved oxygen.
`10^(6g)` water `to 6g O_2`
100 Kg (10^5g) water `to`?
`6xx10^5/10` = 0.6g
Amount of dissolved oxygen in water = 0.6 gm.
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