The molar ratio of oxygen to nitrogen in dissolved air is 2:1 whereas the ratio...

Chemistry

JAMB 1988

The molar ratio of oxygen to nitrogen in dissolved air is 2:1 whereas the ratio is 4:1 in atmospheric air because?

A. nitrogen is less soluble than oxygen
B. oxygen is heavier than nitrogen
C. nitrogen has a higher partial pressure in air
D. gases are hydrated in water

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Correct Answer: Option A

Explanation

the ratio of oxygen to nitrogen in dissolved air is 2:1 whereas the ratio is 4:1 in atmospheric air. This is because oxygen in the air has a higher solubility than other elements in the air and also there is hydrogen bonding between water and oxygen that increases its solubility.

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