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Curated OER
DNA Fingerprinting through a Chemistry Lens
Learners explore DNA and restriction enzymes using fragments of DNA separated by electrophoresis on an agarose gel. They analyze the results to see "whodunit".
Chemistry Collective
Chem Collective: Creating a Buffer Solution
An exercise to design a buffer solution with specific properties.
Chemistry Collective
Chem Collective: Designing a Buffer Solution With a Specific P H
Create a buffer solution at a specific pH using a weak acid and its conjugate base.
Chemistry Collective
Chem Collective: Dna Dye Binding: Equilibrium and Buffer Solutions
Students examine equilibrium and buffer solutions in a biological setting.
State University of New York
State University of New York: P H of Buffer Solutions
This simulation allows the study of the pH of buffer solutions. Six acid-base conjugate pairs are available, and the concentration of the acid and of the base can be adjusted over one order of magnitude.
State University of New York
State University of New York: Buffer Solutions
This simulation introduces buffer solutions.
Chemistry Collective
Chem Collective: P H and Buffers Defined
This tutorial presents a review of the definitions for pH and buffer solutions
Frostburg State University
General Chemistry Online: Faq: Acids and Bases
Click the basic questions regarding acids, bases, and pH to view the answers. There are sections on basic concepts, buffer solutions, pH calculation, equilibrium constants, indicators, neutralization reactions, and titrations.
CK-12 Foundation
Ck 12: Salt Solutions
[Free Registration/Login may be required to access all resource tools.] Students begin by predicting whether a salt solution is acidic, basic, or neutral, and then practice writing balanced equations for hydrolysis reactions. They also...
Georgia Department of Education
Ga Virtual Learning: Ap Chemistry: Acid Base and Solution Equilibrium
Through a variety of activities, students learn that not all acid and base reactions go to completion, and instead, they establish equilibrium. Acid-base equilibrium expressions have their own constants, ka and kb. Students will perform...
Chemistry Collective
Chem Collective: Determining the P Ka and Concentration Ratio
Use the virtual lab to determine the pKa of a protein then create a buffer solution with a specific concentration ratio of the protein in its protonated/ unprotonated form.
Texas Instruments
Texas Instruments: What Does a Buffer Do?
Buffers are solutions that resist a change in pH. In this activity, students will add HCl dropwise to a measured amount of water, monitoring the pH. Students then repeat the process, using a simple buffer prepared by combining baking...
Science Education Resource Center at Carleton College
Serc: Investigating Soil Acidity: Comparing P H and Buffering Capacity of Soils
As part of acid rain study, (environmental chemistry lab) students investigate the differences in pH of soil samples. They will collect and dry samples from the local prairie including grassland, transition, forest and riverbank and...
BiologyWise
Biology Wise: How to Make a Cell Lysis Solution
A cell lysis solution is used to disrupt cellular membranes. This resource provides a detailed explanation of how to make a cell lysis solution and describes the different ingredients, their functions, and the choices available, all...