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 soluble in water at 25 b0C?

BaSO_4

PbI_2

NaNO_3

AgCl

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Verified step by step guidance

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

Step 2: Recall common solubility rules for ionic compounds in water at 25°C. For example, most nitrates (NO_3^-) are soluble, most sulfates (SO_4^{2-}) have varying solubility, and many halides (like Cl^-, I^-) have limited solubility depending on the cation.

Step 3: Analyze each compound using solubility rules: BaSO_4 is generally insoluble due to the low solubility of barium sulfate; PbI_2 is sparingly soluble; AgCl is also sparingly soluble; NaNO_3 is highly soluble because all nitrates are soluble in water.

Step 4: Confirm that NaNO_3 dissociates completely in water into Na^+ and NO_3^- ions, which are well solvated by water molecules, making it soluble.

Step 5: Conclude that among the given compounds, NaNO_3 is the one that is soluble in water at 25°C based on the solubility rules and ionic interactions with water.