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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

With which of the following ions will the ammonium ion, NH_4^+, form an insoluble salt?

Cl^- (chloride)

NO_3^- (nitrate)

None of the above; ammonium salts are generally soluble

PO_4^{3-} (phosphate)

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Verified step by step guidance

Recall the general solubility rules for ionic compounds in water, which help predict whether a salt will be soluble or insoluble.

Note that ammonium ion (NH_4^+) is a positively charged polyatomic ion known for forming soluble salts with most anions.

According to solubility rules, all ammonium salts are generally soluble in water, regardless of the anion they are paired with.

Check the given anions: chloride (Cl^-), nitrate (NO_3^-), and phosphate (PO_4^{3-}). Ammonium salts with chloride and nitrate are definitely soluble.

Even ammonium phosphate, despite phosphate often forming insoluble salts with many cations, is soluble because ammonium salts are exceptions to this rule.