Table of contents

Skip topic navigation

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 51m
7. Gases3h 52m
8. Thermochemistry2h 38m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 10m
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 34m
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

Previous problemNext problem

Struggling with General Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which pair of compounds is insoluble in water?

PbSO₄ and Pb₃(PO₄)₂

Na₂S and CuS

(NH₄)₂SO₄ and AgI

AgNO₃ and KNO₃

Previous problemNext problem

Verified step by step guidance

Identify the solubility rules for common ionic compounds in water. For example, most sulfates (SO4^2-) are soluble, except for those of barium, lead, and calcium.

Apply the solubility rules to each compound in the given pairs. For instance, PbSO4 is insoluble because lead sulfate is an exception to the general solubility of sulfates.

Consider the solubility of phosphates (PO4^3-). Most phosphates are insoluble except for those of alkali metals and ammonium. Therefore, Pb3(PO4)2 is insoluble.

Evaluate the solubility of sulfides (S^2-). Most sulfides are insoluble except for those of alkali metals and alkaline earth metals. Na2S is soluble, but CuS is insoluble.

Check the solubility of nitrates (NO3^-). Nitrates are generally soluble, so both AgNO3 and KNO3 are soluble in water.