Textbook Question
For each of the following molecular formulas, determine the number of elements of unsaturation, and draw three examples.
d. C5H5NO2
e. C6H3NClBr
Table of contents
- 1. A Review of General Chemistry5h 6m
- Summary23m
- Intro to Organic Chemistry4m
- Atomic Structure17m
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- 2. Molecular Representations1h 14m
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- 29. Amino Acids4h 20m
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- Intro to Citric Acid Cycle7m
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- 34. Nucleic Acids1h 32m
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- Catalytic Allylic Alkylation18m
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- 36. Synthetic Polymers1h 49m
- Introduction to Polymers6m
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1. A Review of General Chemistry
Degrees of Unsaturation
Multiple Choice
Given the molecular formula , how many degrees of unsaturation does this molecule have?
A
B
C
D
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Verified step by step guidance1
Identify the molecular formula given: C6H10.
Recall the formula for degrees of unsaturation (also called double bond equivalents, DBE), which is: \(\text{DBE} = \frac{2C + 2 - H}{2}\), where C is the number of carbons and H is the number of hydrogens.
Substitute the values from the molecular formula into the formula: \(\text{DBE} = \frac{2 \times 6 + 2 - 10}{2}\).
Simplify the numerator: calculate \(2 \times 6 = 12\), then add 2 to get 14, and subtract 10 to get 4.
Divide the result by 2 to find the degrees of unsaturation: \(\frac{4}{2}\).
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