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Flinn Lab Activities and Demonstrations
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Acids, Bases and Indicators—Laboratory Kits,
continued
Determination of Ka of Weak Acids— Classic General Chemistry Experiment See page 23.
Buffers in Household Products—General Chemistry Guided-Inquiry Experiment See page 17.
Acidity of Beverages—General Chemistry Guided-Inquiry Experiment
See page 15.
Properties of Buffers—
Student Laboratory Kit
By: The Flinn Staff
Buffers provide an essential acid–base balancing mechanism in consumer products, foods, even living cells! What are buffers made of? How does a buffer work? Can you design a buffer to be effective in a given pH range? Is there such a thing as an ideal buffer? Excite and challenge your students to answer these questions and more as they prepare a range of acetic acid/sodium acetate buffers in the lab and investigate their properties. The experiments in this kit provide a wonderful, culminating experience in acid–base chemistry that will take your students to a new level of understanding and awareness. Includes reproducible student handouts, detailed background information, Instructor’s Notes with sample data and answers to all questions and all necessary chemicals and consumable supplies.
Complete for 30 students working in pairs. Fifteen reusable 24-well reaction plates are recommended and available separately.
pH Properties of Buffer Solutions— Classic General Chemistry Experiment See page 25.
Mystery Solutions with Acids
and Bases—Guided-Inquiry Kit
By: The Flinn Staff
Solve the acid and base mystery. Through deductive reasoning and microscale titrations, students learn the identity and concentrations of the four acid and base solutions. This guided-inquiry experiment can be adapted for various levels of students and each unique set of unknowns will produce a personalized lab experience. Includes reproducible handouts, detailed background information, Instructor’s Notes with sample data and answers to questions, and all necessary chemicals and consumable supplies.
Complete for 30 students working in pairs.
ACIDS, BASES AND INDICATORS continued on next page.
Properties of Buffers—Student Laboratory Kit AP1767
Catalog No.
Description
Price/Each
AP1767
Properties of Buffers—Student Laboratory Kit
$52.00
AP1447
Reaction Plate, 24-well
4.55
Catalog No.
Description
Price/Each
AP7444
Mystery Solutions with Acids and Bases—Guided-Inquiry Kit
$42.75
Mystery Solutions with Acids and Bases—Guided-Inquiry Kit AP7444
pH Indicator Chart
Acidic Basic
Indicator
pH Range
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Thymol Blue
1.2–2.8 and 8.0–9.2
Methyl Orange
3.0–4.4
Bromphenol Blue
3.0–4.6
Congo Red
3.0–5.0
Bromcresol Green
3.8–5.4
Methyl Red
4.4–6.2
Bromthymol Blue
6.0–7.6
Phenol Red
6.8–8.4
Phenolphthalein
8.2–10.0
Thymophthalein
9.3–10.5
© 2009 Flinn Scientic, Inc. All Rights Reserved. AP7291
pH Indicator Chart
By: The Flinn Staff
Acid–base or pH indicators are some of the most
common chemicals you will use in the lab. This beautiful poster—of course, it’s also colorful—will help you select the best indicator for any pH range and also identify the color changes. The pH indicator chart displays the colors of ten common indicators over the entire pH range, from pH 1–14. Instructors and students will love this incredibly useful and pretty chart! Poster size 24" x 36", printed on heavy-duty laminated stock.
pH Indicator Chart AP7291
Catalog No.
Description
Price/Each
AP7291
pH Indicator Chart
$18.15