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Drawing Structural Isomers Chad goes into detail regarding how to take a systematic approach to drawing all of the structural isomers of a hydrocarbon (i.e. drawing all constitutional isomers). He begins the lesson by showing how to calculate the degrees of unsaturation or the Hydrogen Deficiency Index (HDI) based on a molecular formula. He then goes on to demonstrate how to draw all of the structural isomers for C7H16 and C4H10O. If you want all my study guides, quizzes, and practice exams, check out my premium course at https://www.chadsprep.com/organic-chemistry-youtube 00:00 Lesson Introduction 00:47 How to Calculate HDI (Hydrogen Deficiency Index) or Degrees of Unsaturation 05:57 Drawing the Constitutional Isomers of C7H16 16:35 Drawing the Constitutional Isomers of C4H10O https://www.chadsprep.com/ #organicchemistry #organicchemistrytutorial #isomers
Answer each question based on the video lesson you just watched. No outside knowledge is needed — all answers come directly from the video content.
Show all work step by step. Problems increase in difficulty — start with HDI calculations, then move to systematically drawing and counting constitutional isomers.
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These are challenging, exam-level questions that require multi-step reasoning, analysis, and evaluation. Expect to apply the HDI formula, systematically enumerate isomers, and reason about molecular structure — some questions extend beyond the video into related applications.