Additional compounds can be added to agar before sterilization (or sometimes after). an example of this is "milk agar," in which 2% nonfat powdered milk is added to the agar base. lactose-digesting bacteria like to grow on milk agar. how many grams of nonfat powdered milk should be added to 125 ml of lb agar to end up with 2% milk lb agar? show your calculations.