On a Clear Day at Sea Level, with a Temperature

Multiple Choice

On a clear day at sea level, with a temperature of 25 °C, the partial pressure of N₂ in air is 0.78 atm and the concentration of nitrogen in water is 5.3 × 10^-4 M. When the partial pressure of N₂ is ________ atm, the concentration in water is 2.0 × 10^-3 M.

A) 0.63
B) 0.68
C) 1.0
D) 3.0
E) 3.2