Epinephrine (adrenaline) is a hormone secreted into the bloodstream in times of stress. It contains 59.0 % carbon, 7.15 % hydrogen, 26.20 % oxygen and 7.65 % nitrogen. It has a molar mass of 187 grams. (Carbon – 12.01 grams, hydrogen – 1.01 grams, oxygen – 16 grams, nitrogen – 14.01 grams)
28. What is the empirical formula of epinephrine?
A. C9HON		B. C9H16ON		C. C9H16O3N1	D. C9H16O3N