Many household products contain buffering chemicals. Students will design a procedure to determine the buffering agents that are in different household products such as foods, beverages and over the counter drugs. The activity contains enough materials for 15 groups of students as well as a Teacher’s Guide and Student Study Guide Copymasters. Meets Big Idea 6, Investigation 15, Primary Learning Objective 6.20.

Kit Includes:
4 X 500mL Hydrochloric Acid, 0.1N
4 X 500mL Sodium Hydroxide, 0.1N
1 X 500mL Citric Acid Solution, 0.02M
2 X 500mL Isopropyl Alcohol, 90%

**Materials needed but not supplied:
Beakers, 250mL
Buret, 50mL
Graduated Cylinders, 100mL
Erlenmeyer Flask, 125mL
Buret Clamp
Support Stand
Magnetic Stirrer and Stir Bar
pH Meter
Wash Bottle
Water, Distilled or Deionized
Various household products to test