Tryptophan is 64.693% carbon, 5.923% hydrogen, 13.717 % nitrogen, and 15.668 % oxygen. It's molar mass is about 204.229g Determine the molecular formula of tryptophan.

Which of the following warnings would an agricultural chemist tell a farmer who wants to recycle his or her own ammonia? recycling ammonia is a difficult process that sometimes takes weeks. recycling ammonia requires a degree in biochemistry or a related field. recycling ammonia can be harmful because it is highly flammable and toxic. recycling ammonia costs too much money considering the price of the necessary chemicals.