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

3. Chemical Reactions

Naming Ionic Compounds

General Chemistry

3. Chemical Reactions

Naming Ionic Compounds

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Multiple Choice

Which of the following is the correct chemical formula for lithium sulfate?

Li2SO4

LiSO4

LiSO3

Li2SO3

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Verified step by step guidance

Identify the ions involved in lithium sulfate. Lithium forms a cation with a charge of +1, written as Li\u207a, and sulfate is a polyatomic anion with the formula SO\u2084\u2072\u2212, carrying a charge of -2.

Determine the ratio of lithium ions to sulfate ions needed to balance the overall charge. Since lithium has a +1 charge and sulfate has a -2 charge, two lithium ions are required to balance one sulfate ion.

Write the chemical formula by combining the ions in the ratio that balances the charges. This means two lithium ions (Li\u2082) will pair with one sulfate ion (SO\u2084) to form Li\u2082SO\u2084.

Check the options given and compare them with the formula derived. The correct formula should reflect the charge balance and the correct polyatomic ion.

Conclude that the correct chemical formula for lithium sulfate is Li\u2082SO\u2084, as it correctly represents the combination of lithium ions and sulfate ions with balanced charges.