1. Wake-up
Strong acids completely ionize in water. Explain what this means.
Name the following acids/bases:
a. HNO2
b. Hydrosulfuric acid
c. Be(OH)2

2. Neutralization Reactions using Titration Method
What is a titration?
What’s the point?

3. Neutralization Reaction
The process that occurs when an acid and a base come in contact with each other to make a salt and water

4. What is a Titration?
Lab method used to figure out the concentration of a reactant or reagent

5. Acid-Base Titration
A solution containing a known concentration of base is slowly added to an acid until the acid is completely neutralized or vice versa

6. Known solution is in the Biuret (Titrant) Unknown and the Indicator
Titration Apparatus
Known solution is in the Biuret (Titrant)
Unknown and the Indicator

7. Phenolphthalein turns pink in base at 8 pH
Indicator
A substance that indicates the degree of acidity or basicity of a solution through color changes
Phenolphthalein turns pink in base at 8 pH

8. How to do a Titration

10. Graphical Representations
Titrations are represented graphically with end points [pH=7], and equivalence points [H+] = [OH-].
Steepest part of the curve where the pH rises the fastest

11. Compare the graphs of strong acids/bases with the graphs of weak acids/bases

12. MAVA = MBVB Titration Formula MA = Molarity of Acid
VA = Volume of Acid
MB = Molarity of Base
VB = Volume of Base

13. Example #1
A student neutralizes a 15 mL sample of vinegar (acetic acid) with mL of a 0.4 M NaOH solution. What is the molarity of the vinegar?
MA = x
VA = 15 mL
MB = 0.4 M
VB = mL
(x)(15 mL) = (0.4 M)(31.85 mL)
0.85 M of vinegar

14. Example #2
It takes 83 mL of a 0.45 M NaOH solution to neutralize 235 mL of an HCl solution. What is the concentration of the HCl solution?
MA = 0.45 M
VA = 83 mL
MB = x
VB = 235 mL
(0.45 M)(83 mL) = (x)(235 mL)
0.16 M of HCl

15. Bromothymol Blues Song