@useinkling: R or S is three steps: rank by atomic number, put the lowest one in back, trace 1 → 2 → 3 🎃 have you tried the r or s lesson in the app? 📲 search "inkling orgo" on the App Store, it's free, or go to tryinkling.app R/S for orgo 1 stereochemistry: O beats C beats H. when two carbons tie, look one atom further out and compare the sets, and a double bond counts its atom twice, so CHO beats CH₂OH. with the lowest group on a dash, clockwise is R and counterclockwise is S. if the lowest one is on a wedge, read it and flip your answer. the lowest isn't always H, and swapping any two groups turns R into S. H on a wedge: do you flip the answer or redraw it? 👇 #ochem #organicchemistry #stereochemistry #orgo1 #studytok

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