Your Safer Source for Science

Since 1977

Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax 866-452-1436
Email flinn@flinnsci.com

Product 12495

By: The Flinn Staff

With the pH Properties of Buffer Solutions Classic Lab Kit for AP® Chemistry, students investigate the properties of buffer solutions. This lab is challenging and tests students’ understanding of pH and buffer chemistry.

See more product details

Options:

(Select option to see volume pricing availability)

Product Details

Classic AP Requirement #19—Preparation and Properties of Buffer Solutions

In this laboratory, students investigate the properties of buffer solutions. The students make two ideal buffer solutions, one consisting of a weak acid and its conjugate base and the other, a weak base and its conjugate acid. The initial pH of each solution is determined. Strong acid and strong base are then added to each buffer in a series of steps, with the pH determined after each addition. The resulting pH values after each addition are compared to calculated values for each buffer. A challenging lab to test students’ understanding of pH and buffer chemistry.

Complete for 24 students working in pairs.

pH Properties of Buffer Solutions Inquiry Guidance & AP® Chemistry Curriculum Alignment Transition Guide available! Follow the link in Resources to find this valuable publication that lets you adapt this classic AP Chemistry experiment for guided-inquiry and correlate with the AP Chemistry curriculum framework.

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Planning and carrying out investigations
Analyzing and interpreting data
Asking questions and defining problems
Using mathematics and computational thinking

Disciplinary Core Ideas

HS-PS1.A: Structure and Properties of Matter
HS-PS1.B: Chemical Reactions

Crosscutting Concepts

Scale, proportion, and quantity
Cause and effect
Systems and system models

Performance Expectations

HS-PS1-1: Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.
HS-PS1-2: Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.
HS-PS1-5: Apply scientific principles and evidence to provide an explanation about the effects of changing the temperature or concentration of the reacting particles on the rate at which a reaction occurs.
HS-PS1-7: Use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction.