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

9. Solutions

Solubility and Intermolecular Forces

GOB Chemistry

9. Solutions

Solubility and Intermolecular Forces

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Multiple Choice

Which of the following statements is/are true?
a) Methane will dissolve completely in acetone, CH₃COCH_3.
b) Hydrofluoric acid (HF) will form a heterogeneous mixture with tetrachloride, CCl₄.
c) Pentane will form a homogeneous mixture with CBr₄.
d) Methanethiol (CH₃SH) is miscible in fluoromethane (CH₃F).

B & C

C & D

B,C, & D

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Verified step by step guidance

Step 1: Understand the concept of solubility and miscibility. Solubility refers to the ability of a substance to dissolve in a solvent, forming a homogeneous mixture. Miscibility is a specific type of solubility where two liquids can mix in all proportions, forming a single phase.

Step 2: Analyze statement (a): Methane is a nonpolar molecule, while acetone is a polar solvent. Generally, 'like dissolves like,' meaning polar solvents dissolve polar solutes and nonpolar solvents dissolve nonpolar solutes. Therefore, methane is unlikely to dissolve completely in acetone.

Step 3: Analyze statement (b): Hydrofluoric acid (HF) is polar, while carbon tetrachloride (CCl4) is nonpolar. Due to their differing polarities, HF and CCl4 will not mix well, likely forming a heterogeneous mixture.

Step 4: Analyze statement (c): Pentane and carbon tetrabromide (CBr4) are both nonpolar substances. Nonpolar substances tend to mix well with each other, forming a homogeneous mixture.

Step 5: Analyze statement (d): Methanethiol (CH3SH) and fluoromethane (CH3F) are both polar molecules. Polar molecules are generally miscible with each other, so methanethiol is likely miscible in fluoromethane.