Kingjelly3448go Kingjelly3448go Chemistry Answered Acetaminophen: Rf = 0.61 Acetylsalicylic: Rf = 0.77 Caffeine: Rf = 0.17 Phenacetin: Rf = 0.69 Salicylamide: Rf = 0.62 Based on the Rf values, which analgesic is the most polar? Explain.