1. Acids and Bases

2. Practice Problem 3 moles NaCl/4.5L of solution= 0.7M
What is the molarity of a solution that contains 3 moles of sodium chloride, NaCl in 4.5L of solution?
3 moles NaCl/4.5L of solution= 0.7M

3. 0 - <7= Acid 7= Neutral >7 - 14= Base
pH scale
0 - <7= Acid = Neutral >7 - 14= Base

4. Properties of Acids Acids ionize to form H+ ions (H3o+) Corrosive
Conduct electric current
Cause indicators to change color
Taste sour

5. Damage to teeth from acid (soda)

6. Strong Acids HCl - hydrochloric acid HNO3 - nitric acid
H2SO4 - sulfuric acid
HBr - hydrobromic acid
HI - hydroiodic acid
HClO4 - perchloric acid

7. Properties of Bases Bases form OH- ions Taste bitter Feel slippery
Conduct electric current
Cause indicators to change color
Can damage skin

8. Strong Bases LiOH - lithium hydroxide NaOH - sodium hydroxide
KOH - potassium hydroxide
RbOH - rubidium hydroxide
CsOH - cesium hydroxide
Ca(OH)2 - calcium hydroxide
Sr(OH)2 - strontium hydroxide
Ba(OH)2 - barium hydroxide

9. Neutralization Reaction
acid+base→salt+water
Ex. NaOH+HCl→NaCl+H2O
“Water-forming reaction”
pH 7

10. Spectator Ions Do not change reaction between H3O+ and OH- Na+ and Cl-
Ex. HCl + H2O + NaOH Na+ + Cl- + 2H2O
Na+ and Cl-

11. Not All Solutions Are Created Equal
Strong acid + weak base = acidic
Strong base + weak acid = basic

12. Salts
Any combination of cations and anions, except hydroxide and oxides, which are bases.

13. Ca+, K+, Na+

14. Neutralization Reaction

16. What’s happening? Why does the cork pop off?
NaHCO3 + CH3COOH ----> CO2 + H2O + CH3COONa
Why does the cork pop off?

17. More Molarity…
What is the molarity of a solution that contains 4.00 moles of Magnesium Bromide, MgBr2 in 7.00 L of solution?
2. What is the molarity of a solution that contains 256g of Aluminum Fluoride, AlF3 in 5.00L of solution?

18. Stumped? Come see me!!