Innovating Science® - APï®® Chemistry Lab #4: Acid in Fruit Juices and Soft Drinks

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Manufacturer ID - IS8104

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.

Safety Data Sheet

Study how the concentration of acids in various consumer beverages may be determined by titration with sodium hydroxide. Students will determine the proper indicator to use in the titration of a weak acid. Students will create an experiment to calculate the molar concentration of acid in a beverage. The activity contains enough materials for 15 groups of students as well as a Teacher's Guide and Student Study Guide Copymasters. This lab meets Big Idea 1, Investigation 4, Primary Learning Objective 1.20.

Kit Includes:
10g Potassium Hydrogen Phthalate
4 X 25g Sodium Hydroxide
100mL Hydrochloric Acid, 0.1M
100mL Acetic Acid, 0.1M
500mL Sodium Hydroxide, 0.1M
25mL Phenolphthalein, 1%
25mL Methyl Red, 0.02%
25mL Bromothymol Blue, 0.04%
1 pH Strips 1-14 Pkg/100

Materials needed but not supplied:
Buret, 50mL
Lab Stands with Clamps
10mL Volumetric Pipettes
25mL Volumetric Pipettes
Test Tubes
Test Tube Racks
Pipette Bulbs or Pi-Pumps
Various Erlenmeyer Flasks
Various Graduated Cylinders
Distilled or Deionized Water
Wash Bottles
Electronic Balance, 0.001g resolution or better (optional)

DOT Info:
Small quantity exemption 173.4
THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or rail transport only

WARNING: This product can expose you to chemicals including Phenolphthalein, which is known to the State of California to cause cancer. For more information go to
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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