The chromatogram shows the separation of components in an over‑the‑counter pain reliever. a plot has peaks labeled 1 through 4 and a horizontal axis labeled minutes. the positions of the peaks on this axis are given as t sub r in the text, and the widths at half height are given as w sub one half. peak component t r (min) w 1/2 (min) 1 acetaminophen 3.97 0.12 2 caffeine 6.15 0.21 3 benzoic acid 9.73 0.35 4 aspirin 14.8 0.73 calculate the number of theoretical plates, n , for the peaks of acetaminophen and caffeine. acetaminophen: n = plates caffeine: n = plates calculate the resolution, r , between acetaminophen and caffeine. r =