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 will have the highest molar solubility in pure water?

BaSO_4

AgCl

NaNO_3

CaCO_3

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Verified step by step guidance

Step 1: Understand that molar solubility refers to the number of moles of a compound that can dissolve in a liter of water to form a saturated solution. It depends on the compound's solubility product constant, $K_{sp}$, and the nature of the compound (ionic vs. molecular).

Step 2: Recognize that $BaSO_4$, $AgCl$, and $CaCO_3$ are sparingly soluble salts with relatively low $K_{sp}$ values, meaning they dissolve only slightly in water, producing low molar solubility.

Step 3: Note that $NaNO_3$ is a highly soluble ionic compound that dissociates completely in water, so its molar solubility is very high compared to the other salts listed.

Step 4: To compare quantitatively, you would look up or be given the $K_{sp}$ values for the sparingly soluble salts and calculate their molar solubility using the expression $K_{sp} = [M^{n+}]^m [X^{m-}]^n$, where $M$ and $X$ are the ions formed upon dissolution.

Step 5: Since $NaNO_3$ is a strong electrolyte and dissolves completely, its molar solubility is much higher than the others, which is why it has the highest molar solubility in pure water.