Henry's Law constant is quote numerous ways. I will use the equation of Pgas = k*c so k = P/c = value in units of atm*L/moles.
Convert 518 g/L to moles NH3 and substitute into Henry's Law equation I show above along with P of 1 atm and evaluate k. Then redo the equation using 225 torr (convert to atm first) and solve for molar concn NH3 at that reduced pressure.
The solubility of NH3 in H2O is 518 g/L at a partial pressure of 760.0 torr.
a. Calculate the value of the Henry's Law constant for NH3
b. Calculate the solubility of NH3 in H2O at a partial pressure of 225.0 torr.
2 answers
5.2