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 name for the compound FeCl_3?

Ferric trichloride

Iron(II) chloride

Iron(III) chloride

Iron chloride

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Verified step by step guidance

Step 1: Identify the metal and its possible oxidation states. Iron (Fe) can have multiple oxidation states, commonly +2 and +3.

Step 2: Determine the charge on the chloride ion. Chloride (Cl) has a charge of -1.

Step 3: Use the formula FeCl_3 to find the oxidation state of iron. Since there are three chloride ions, each with a -1 charge, the total negative charge is -3. To balance this, iron must have a +3 charge.

Step 4: Name the compound using the Stock system, which indicates the oxidation state of the metal in Roman numerals in parentheses. Since iron is +3, the name is Iron(III) chloride.

Step 5: Understand why other names are incorrect: 'Ferric' is an older naming system equivalent to Iron(III), but 'Ferric trichloride' is less preferred; 'Iron(II) chloride' indicates Fe with +2 charge, which does not match FeCl_3; 'Iron chloride' is incomplete as it does not specify the oxidation state.