1. Unit Twelve Acids and Bases

2. Characteristics
What are some acids and bases you are familiar with?

3. Characteristics Acids Examples: Electrical conductor Tastes sour
Turns blue litmus red
Neutralizes bases
Reacts with metals to produce H2 gas
Often corrosive to skin
Reacts with carbonates to form CO2 gas
pH < 7
Examples:
H2SO4
HCl
H2CO3
HC2H3O2
Common Examples:
Sour Patch Kids
Vinegar
Lemon juice
Orange juice
Soda

4. Characteristics Bases Examples: Electrical conductor Tastes bitter
Turns red litmus blue
Neutralizes acids
Reacts with oxides of many nonmetals
Feels slippery
Reacts with dissolved metal ions (precipitates)
pH > 7
Examples:
NaOH
KOH
NaHCO3
NH3
Common Examples:
Caffeine
Baking Soda
Antacids
Bleach

5. Naming Acids Examples: HF HNO3
H3PO4
HC2H3O2
Anion Suffix Acid Suffix Example
- ide “hydro + root + ic HCl = hydrogen chloride
hydrochloric acid
- ate root + ic H2SO4 = hydrogen sulfate
sulfuric acid
- ite root + ous H2SO3 = hydrogen sulfite
sulfurous acid
hydrofluoric acid nitric acid phosphoric acid acetic acid

6. Positive ion + “hydroxide”
Naming Bases
Examples:
NaOH
Mg(OH)2
NH4OH
Fe(OH)2
Positive ion + “hydroxide”
sodium hydroxide
magnesium hydroxide
ammonium hydroxide
iron (II) hydroxide

7. Arrhenius Acid and Base

8. Brønsted-Lowry Acid and Base

9. Worksheet One is due Wednesday
Don’t forget to turn in your labs
Please attached the rough draft version
Gizmos