What is the saturation conceyou have a 55 ml capped test tube containing 25 ml of water. benzene is present in the water at a concentration of 1.0 x 10-4 m. the henry’s law constant for benzene is 0.1821 mol/(l-atm).what is the number of moles of benzene in the liquid phase? what will be the concentration (partial pressure) of benzene in the gas phase at equilibrium? what is the total number of moles of benzene in the gas phase? assume a temperature of 25°c. ntration (mole/l) of oxygen in a river in winter at 0°c if the henry’s law constant at this temperature is 2.28 x 10-3 mole/l-atm? what is the answer in mg/l?