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

13. Alkenes, Alkynes, and Aromatic Compounds

Intro to Addition Reactions

GOB Chemistry

13. Alkenes, Alkynes, and Aromatic Compounds

Intro to Addition Reactions

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Multiple Choice

How many moles of reagent are needed for the addition of the following alkyne?

2 moles

3 moles

1 mole

4 moles

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Verified step by step guidance

Identify the functional group in the given alkyne structure. The structure contains a carbon-carbon triple bond, which is characteristic of alkynes.

Understand that the addition of hydrogen (H2) to an alkyne involves a hydrogenation reaction, where the triple bond is converted to a single bond through the addition of hydrogen atoms.

Recognize that each carbon-carbon triple bond can be fully hydrogenated to a single bond by the addition of two moles of hydrogen (H2). This is because each pi bond in the triple bond requires one mole of H2 to be converted to a single bond.

Count the number of pi bonds in the alkyne. A carbon-carbon triple bond consists of one sigma bond and two pi bonds.

Conclude that to fully hydrogenate the alkyne to an alkane, two moles of H2 are required to add across the triple bond, converting it to a single bond.