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10) Air is a mixture of gases that is about 78.0% N2 by volume. When air is at standard pressure and 25.0 °C, the N2 componen

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Answer #1

The given data:

The volume % of N2 = 78% ; Mole fraction of N2 = 0.78

N2 dissolve in water with solubility = 4.88 * 10-4

condition = 25 0C & 1 atm

Value of Henry's law = ?

Henry's Law; C liquid = K * P gas (substitute the values in this equation)

Where; C liquid = concentration of gas in liquid

K = Henry's Law constant    

P gas = Pressure of gas

   4.88 * 10-4 = K * 1 atm * 0.78

  4.88 * 10-4 / 0.78 = K

6.25 * 10-4 = K

Henry's Law constant for N2 under these conditions is K =6.25 * 10-4.M / atm

  

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