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Acids, Bases, and pH

Acids, Bases, and pH
Contributors
Mollie Enright
Beyond Benign, Inc.
Annette Sebuyira
Retired K-12 Educator | Beyond Benign, Inc.
Janie Butler
Science Done Sustainably
Beyond Benign
Beyond Benign, Inc.
Learning Objets
Summary
This lab is intended to introduce students to the concepts of acids, bases, and pH. Students determine the best suitable natural indicators to test the pH of the various household products and substances.
Keywords
Acids and bases
pH
Indicators
Neutral

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Moderation state
Published
Object Type
Laboratory experiment
Audience
High School (Secondary School)
Published on
Green Chemistry Principles
Less Hazardous Chemical Syntheses
Use of Renewable Feedstocks
Real-Time Pollution Prevention
Safer Chemistry for Accident Prevention
NGSS Standards, if applicable
HS-PS1-11. Plan and conduct an investigation to compare properties and behaviors of acids and bases.

Learning Goals/Student Objectives
Educational Goals:
Students will understand...
- Measure the pH of solutions using a pH meter, pH paper, and/or litmus paper
- Categorize or group substances as acids, bases, or neutral, based on pH
- Determine the scope and limitations of natural pH indicators

Student Objectives:
Students will...
- Measure the pH of common household products using a pH meter, pH paper, litmus paper, and/or indicators
- Determine the pH ranges of the natural indicators (red cabbage juice, beet juice and blueberry juice)
- Collect qualitative experimental data and establish a natural indicator color chart for the household products
- Classify the household substances as acidic, basic, or neutral using natural indicators
- Analyze which natural indicator (red cabbage juice, beet juice, or blueberry juice) is the best for measuring the pH of various household products
Common pedagogies covered
Hands-on learning
Time required (if applicable)
One 45-60 minute class period

Submitted by

Rhianna Kozinski
Safety Precautions, Hazards, and Risk Assessment
N/a
Digital Object Identifier (DOI)
https://doi.org/10.59877/KACD8230

File (PDF, PPT, image, etc)

File (PDF, PPT, image, etc)
acid-bases-and-ph.docx
Creative Commons License
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.