Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

12. Introduction to Organic Chemistry

Functional Groups in Chemistry

GOB Chemistry

12. Introduction to Organic Chemistry

Functional Groups in Chemistry

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Problem 18a

Textbook Question

Identify the family of hydrocarbon present in the following:
(a) CH₃CH₂CH=CH₂

Verified step by step guidance

Examine the molecular formula provided: CH₃CH₂CH=CH₂. Note the presence of a double bond between two carbon atoms.

Recall that hydrocarbons are classified into families based on the type of bonding between carbon atoms: alkanes (single bonds), alkenes (double bonds), and alkynes (triple bonds).

Identify the double bond in the structure, which is characteristic of alkenes. Alkenes are unsaturated hydrocarbons containing at least one carbon-carbon double bond.

Verify that the rest of the molecule contains single bonds, confirming that the double bond is the defining feature of this hydrocarbon family.

Conclude that the given compound belongs to the alkene family of hydrocarbons due to the presence of the double bond.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Hydrocarbons

Hydrocarbons are organic compounds composed solely of hydrogen and carbon atoms. They can be classified into two main categories: aliphatic and aromatic. Aliphatic hydrocarbons include alkanes, alkenes, and alkynes, which differ in their bonding and structure. Understanding the basic structure of hydrocarbons is essential for identifying their types and properties.

Alkenes

Alkenes are a family of hydrocarbons characterized by at least one carbon-carbon double bond (C=C). This double bond gives alkenes unique chemical properties, such as increased reactivity compared to alkanes, which only have single bonds. The general formula for alkenes is CnH2n, where 'n' is the number of carbon atoms. Recognizing the presence of a double bond is crucial for classifying hydrocarbons.

Structural Formula

The structural formula of a compound provides a visual representation of the arrangement of atoms within the molecule. It indicates how the atoms are connected and can reveal functional groups, such as double bonds in alkenes. For the given hydrocarbon CH3CH2CH=CH2, the structural formula shows a chain of carbon atoms with a double bond between the last two, confirming its classification as an alkene.