Gas Solubility Chemistry Question

Question

If a gaseous sample contains 53% N₂ by volume, what is the solubility of N₂ in water at 25°C and 1.0 atm (k_H in H₂O at 25°C = 7.0  10^-4 mol/Latm)?

Answer 1

C_i = k_HP_i where C is the concentration of a gas dissolved in water and P is its partial pressure.

C = (7 x 10^-4 mole/l-atm)(.53)(1.0 atm) because P_i = (n_i/n_T) P_T or x_iP_T where x is the mole fraction.