Question

If air Contains 78 % N2 by voume
What is the solubility of n2
in water at 25c?​

Answer 1

Answer:

[N₂] = kH ∙ p(N₂)

Assuming ideal gas mixture the partial pressure of nitrogen equals 78% of the total pressure, i.e.

p(N₂) = 0.78 atm

So the solubility of nitrogen under these conditions is:

[N₂] = 7×10⁻⁴mol/(Latm) ∙ 0.78 = 5.46×10⁻⁴mol/L >>