CH231H_Chapter3

Learning Goals:  Chapter 3

1. You can name the elements from their chemical symbols, and provide the chemical symbol for each (named) element.
2. You understand how the Law of Definite Proportion and the Law of Multiple Proportions leads to a single chemical formula for a pure chemical substance.
3. You understand that the chemical formula may represent a formula unit for an ionic compound.
4. You recognize that the correct formula to use for a covalent molecule is the molecular formula (which may be some multiple of the simplest formula unit).
5. You can convert a formula unit or molecular formula to elemental composition in weight-per cent.
6. You can convert an elemental composition in wt.-% to a formula unit.
7. You can determine a molar mass for a chemical compound if given the formula unit or molecular formula.
8. You can provide a reasonable name for binary compounds from their formula unit.
9. You can provide a reasonable name for ionic compounds with polyatomic ions from their formula unit.
10. You can provide the formula unit from the name of an ionic compound.
11. You can name simple straight-chain alkanes from C₁-C₁₀ and recognize the presence of a functional group in an organic compound.
12. You can identify the oxidation state of an atom in an ionic or covalent compound.

Note:  organic nomenclature will be handled in more depth in CH 233H.

Links:

Gilbert Hall Entrance

The Periodic Table

And one way to start memorizing it

Models of ionic and molecular compounds

A calculator for elemental composition

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