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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

At a certain temperature, which of the following best describes the solubility of strontium arsenate (Sr3(AsO4)2) in water according to general solubility rules?

It is soluble only in hot water.

It is generally insoluble in water.

It is soluble due to the presence of strontium ions.

It is highly soluble in water.

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Verified step by step guidance

Recall the general solubility rules for ionic compounds in water, which help predict whether a compound will dissolve significantly or remain mostly solid.

Identify the ions in strontium arsenate: Sr\_3(AsO\_4)\_2 dissociates into 3 Sr^{2+} ions and 2 AsO_4^{3-} ions in solution.

Check the solubility of arsenate (AsO_4^{3-}) salts: most arsenates are generally insoluble in water except those of alkali metals and ammonium.

Consider the solubility of strontium (Sr^{2+}) salts: strontium compounds are often sparingly soluble, but strontium arsenate is not an exception to the insolubility of arsenates.

Conclude that strontium arsenate is generally insoluble in water based on these rules, meaning it does not dissolve appreciably at room temperature or even in hot water.