1.

The solubility of oxygen in aqueous solutions is about?(a) 20 ppm(b) 15 ppm(c) 10 ppm(d) 5 ppm

Answer» Correct choice is (c) 10 ppm

Easiest explanation: The solubility of oxygen in aqueous solutions at ambient temperature and pressure is only about 10 ppm. This amount of oxygen is quickly consumed in aerobic cultures and must be constantly replaced by sparging.


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