Instructional Video
Khan Academy

Khan Academy: Introduction to Buffers

9th - 10th
An introduction to buffer systems, which regulate pH in blood. [6:20]
Instructional Video
Khan Academy

Khan Academy: Buffers, the Acid Rain Slayer

9th - 10th
Define buffers and their compositions, and learn about carbonate buffering systems in nature, acid rain, pH of buffers, and titration. See an experiment using indicators to showcase just how awesome buffers are. [10:51]
Instructional Video
Khan Academy

Khan Academy: Common Ion Effect and Buffers

9th - 10th
See an example of calculating the pH of solution that is 1.00 M acetic acid and 1.00 M sodium acetate using ICE table. Also shown is another example of calculating pH of a solution that is 0.15 M ammonia and 0.35 M ammonium nitrate. [13:19]
Instructional Video
Khan Academy

Khan Academy: Buffer Solution P H Calculations

9th - 10th
See examples of calculating the pH of a buffer solution using the Henderson-Hasselbalch equation, including the pH of the buffer solution after adding some NaOH. [11:38]
Instructional Video
Khan Academy

Khan Academy: P H and P Ka Relationship for Buffers

9th - 10th
How the Henderson-Hasselbalch equation can be used to look at the ratio of conjugate acid and base using relationship between buffer pH and pKa. [7:50]
Instructional Video
Khan Academy

Khan Academy: Buffer Capacity

9th - 10th
Learn the definition of buffer capacity, and see an example showing why it depends on the absolute concentrations of the conjugate acid and base. [10:44]
Instructional Video
Khan Academy

Khan Academy: Ways to Get a Buffer Solution

9th - 10th
This tutorial describes the two main situations where you get a buffer: making a buffer for a specific pH by combining a weak acid and a salt containing the conjugate base, and using a neutralization reaction by combining a weak acid and...
Instructional Video
Khan Academy

Khan Academy: Biology: Water, Acids, and Bases: Introduction to Buffers

9th - 10th
This video explores buffer system by using the example of the buffering that occurs in our body to get our blood at a particular pH. [6:19]
Instructional Video
Crash Course

Crash Course Chemistry #31: Buffers, the Acid Rain Slayer

9th - 10th
Learn about buffers and their compositions, carbonate buffering systems in nature, acid rain, pH of buffers, and titration. Also see an experiment using indicators to showcase buffers. [11:41]
Instructional Video
Khan Academy

Khan Academy: Chemistry: Buffers and Hendersen Hasselbalch

9th - 10th
Through this video module understand how a buffer gives stability to solution's pH. Also learn how to solves for a solution's pH using the Hendersen-Hasselbalch formula. Instructor shows students how to derive the formula through a basic...
Instructional Video
Khan Academy

Khan Academy: Buffers, the Acid Rain Slayer

11th - 12th
In this episode created of Crash Course, Hank talks about how nutty our world is via Buffers! He defines buffers and their compositions, talks about carbonate buffering systems in nature, acid rain, pH of buffers, and titration. Plus, a...
Instructional Video
Khan Academy

Khan Academy: Buffers and Henderson Hasselbalch

11th - 12th
A buffer solution contains a mixture of a weak acid and its conjugate base (or a weak base and its conjugate acid). The equilibrium between the weak acid and its conjugate base allows the solution to resist changes to pH when small...
Instructional Video
Khan Academy

Khan Academy: Buffer Capacity

11th - 12th
This video explains buffer capacity and uses an example showing why it depends on the absolute concentrations of the conjugate acid and base. [10:43]