IS1503 Distance Learning: Acids, Bases and the pH Scale

In this lab, students will gain an understanding of the basic differences between the properties of acids and bases, learn the role of hydrogen and hydroxide ions in acidic and basic substances, and comprehend the nature of the pH scale with regards to acid and base strength. Students will examine the effects of acids and bases on several pH indicators, determine the pH of several common household materials, and use the knowledge gained to determine the identity of four unknown solutions. Instruction Manual and enough materials for 2 groups are included.

Aligned to the Next Generation Science Standards (NGSS)*

Disciplinary Core Ideas: PS1.B
Performance Expectations: HS-PS1-3
Cross Cutting Concepts: Patterns
Engineering Practices: Planning and Carrying Out Investigations

Kit Includes:
5mL Deionized Water
5mL Dilute Acid (0.1M HCl)
5mL Dilute Base (0.1M NaOH)
5mL Litmus Blue, 0.5%
5mL Methyl Red, 0.02%
5mL Bromothymol Blue, 0.5%
5mL Phenolphthalein, 1.0%
5mL Vinegar
5mL Household Ammonia
5mL Soap Solution
5mL Filtered Water
5mL Vitamin C Solution
5mL Unknown Solution #1 (Water)
5mL Unknown Solution #2 (Dilute Base)
5mL Unknown Solution #3 (Phenolphthalein)
5mL Unknown Solution #4 (Dilute Acid)
1 Wide-range pH Test Strips, pkg/50
2 Reaction Trays

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

*”Next Generation Science Standards” is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards was involved in the production of, and does not endorse, this product.

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

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