If a gaseous sample contains 80.% N2 by volume, what is the solubility of N2 in water at 25°C and 1.0 atm (kH in H2O at 25°C = 7.0 10-4 mol/Latm)?

The solubility of nitrogen gas in the sample is

Explanation:

We are given:

Volume percent of nitrogen gas = 80 %

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

where,

= Henry's constant =

= partial pressure of nitrogen gas = 1.0 atm

Putting values in above equation, we get:

Solubility of nitrogen gas in the sample =

Hence, the solubility of nitrogen gas in the sample is

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