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UNIT 5 by Mind Map: UNIT 5

1. Moles

1.1. Avogadro's number = 6.02 x 10^23 particles, ions, atoms, formula units or molecules.

1.2. Molar Mass = sum of the atomic masses of the elements in a substance in 1 mole.

2. Percent Composition

2.1. relative amount of an element in a compound.

3. Empirical Formulas

3.1. Lowest ratio between the elements in a compound. Can calculated from the percent composition.

4. Types of Chemical Reactions

4.1. Synthesis

4.1.1. One product

4.2. Decomposition

4.2.1. One reactant

4.3. Combustion

4.3.1. Oxygen gas and a hydrocarbon forming CO2 and H2O

4.4. Single Replacement

4.4.1. Cationic Metal replaces a cation in a compound. Use the activity series to determine if the reaction will occur or not. Activity Series

4.4.2. Anionic Nonmetal replaces an anion in a compound.

4.5. Double Replacement

4.5.1. Precipitation solid precipate forms

4.5.2. Neutralization Acid/Base forming salt and water

4.5.3. Exchange of cations and anions of 2 compounds (like FOIL in algebra)

5. Mole Ratio

5.1. Coefficients of a chemical reaction - represents the amounts of moles

5.1.1. Limiting reactant

5.1.2. Theoretical yield Percent Yield

5.1.3. Convert moles of one substance to moles of a different substance in ONE chemical reaction.