On a clear day at sea level, the partial pressure of N2 in air is 0.78 atm at 25 degres C. Under these conditions, the concentration of N2 in water is

Question

5.3 x 10^-4 M. What is the partial pressure of N2 when the concentration in water is 3.5 x10^-4 M?

Answer 1

First determine the constant in
p = Kc*C
You're given p and C, solve for Kc.

Then using that value for Kc, plug in M and Kc and solve for pN2.