Innovating Science® - APï®® Chemistry Lab #15: Buffering Activity of Common Household Products

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Manufacturer ID - IS8115

Students will learn about acids and bases through a class discussion and then test a dilute acid and dilute base with neutral litmus paper to learn how the paper indicates something is acidic or basic. Once that skill is learned they can move on to test some common items that would be found around their house to determine if they are acids or bases. Optional: Extra litmus paper is included to test more items either from home or around the school building for a greater understanding of acids and bases. The activity contains enough materials for 6 groups of students.

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
Flask, Ehrlenmeyer, 125mL
Clamp, Buret
Support Stand
Magnetic Stirrer and Stir Bar
pH Meter
Wash Bottle
Water, Distilled or Deionized
Various household products to test

DOT Info:
UN1219, Isopropanol solution, 3, II, Ltd Qty
Brand Name
Innovating Science®
Performance Expectations 5-PS1-3
Cross Cutting Concepts Cause and Effect
Scale, Proportion, and Quantity
Engineering Practices Planning and Carrying Out Investigations
Box Used 12663SBOX
Width (in) 6.25
Height (in) 4
Weight (oz) 19.9
Weight (lb) 1.24
Country of Origin US
Harmonization Code 9023.00.0000
DOT Description Non regulated

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