Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

6. Chemical Quantities & Aqueous Reactions

Solubility Rules

General Chemistry

6. Chemical Quantities & Aqueous Reactions

Solubility Rules

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Multiple Choice

Which of the following compounds is least soluble in water?

AgCl

K_2SO_4

NH_4Br

NaNO_3

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Verified step by step guidance

Step 1: Understand that solubility in water depends on the compound's ability to dissociate into ions and interact with water molecules. Ionic compounds that form ions which strongly interact with water tend to be more soluble.

Step 2: Recall the general solubility rules for ionic compounds in water: most alkali metal salts (like Na+ and K+) and ammonium salts (NH_4^+) are soluble, as well as most nitrates (NO_3^-).

Step 3: Analyze each compound: K_2SO_4 contains K+ and SO_4^{2-}, both generally soluble; NH_4Br contains NH_4^+ and Br^-, both soluble; NaNO_3 contains Na+ and NO_3^-, both soluble; AgCl contains Ag^+ and Cl^-, and silver halides are known to be poorly soluble.

Step 4: Use the solubility product constant (K_{sp}) concept: compounds with very low K_{sp} values are less soluble. AgCl has a very low K_{sp}, indicating low solubility in water.

Step 5: Conclude that among the given compounds, AgCl is the least soluble in water due to its low solubility product and the nature of silver halides.