The solubility of o2 at 20c is 1.38 x10^-3. the partial presure of o2 in the air at sea level is 0.27 atm. using henery;s law, calculate the molar concentration of o2 in the surface water of a mountain lake saturated with air at 20C and an atmospheric pressure of 682 TM

The solubility of oxygen at 682 torr is

Explanation:

To calculate the molar solubility, we use the equation given by Henry's law, which is:

Or,

where,

are the initial concentration and partial pressure of oxygen gas

are the final concentration and partial pressure of oxygen gas

We are given:

Conversion factor used:  1 atm = 760 torr

Putting values in above equation, we get:

Hence, the solubility of oxygen gas at 628 torr is

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