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 ions, when combined with Ba^{2+}, forms a compound that is most soluble in water?

CO_3^{2-}

PO_4^{3-}

NO_3^-

SO_4^{2-}

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Verified step by step guidance

Step 1: Understand that the solubility of ionic compounds in water depends on the solubility rules and the lattice energy of the compound formed between the cation and anion.

Step 2: Recall the common solubility rules: nitrates (NO_3^-) are generally soluble with all cations, while carbonates (CO_3^{2-}), phosphates (PO_4^{3-}), and sulfates (SO_4^{2-}) have varying solubilities depending on the cation.

Step 3: Consider the specific case of Ba^{2+} combined with each anion. BaCO_3 and Ba_3(PO_4)_2 are typically insoluble or sparingly soluble, BaSO_4 is known to be poorly soluble, and Ba(NO_3)_2 is highly soluble in water.

Step 4: Use the solubility product constant (K_{sp}) values if available to compare the solubility quantitatively. The higher the K_{sp}, the more soluble the compound is.

Step 5: Conclude that Ba^{2+} combined with NO_3^- forms Ba(NO_3)_2, which is the most soluble compound among the options given, based on solubility rules and K_{sp} data.