The chemical plant produces 125.0 m/h of waste gas (2 = 0.0407 mol/L) initially having a mole fraction of 0.150 NHZ and wishes to remove 90.0% of the initial amount of NH3. The maximum concentration of ammonia in water at this temperature is 0.2500 mol NHz/mol water. Neglect the absorption of other waste gas components into the water and the evaporation of water into the waste gas stream. At what rate is NH3 being removed from the feed gas? rate of NH3 removal: mol/h What is the minimum flow rate of water ( = 0.990 g/mL) required to scrub out 90.0% of the incoming NHZ? minimum flow rate of water: L/h What is the mole fraction of NH, in the scrubbed waste gas stream? mole fraction: mol NH; mol waste gas