ChemEd DL Resource Groups

60 Results

Titration Curves (Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.

Indicators (Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.

Titrations (Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.

Solutions (Movie/Animation, Audio/Visual (9))
Reactions and demonstrations exploring the concepts of solutions.

Titration Techniques (Movie/Animation, Audio/Visual (9))
Techniques and concepts important in titrations are demonstrated and discussed.

Beginning the Titration (Procedures and Mistakes) (Movie/Animation, Audio/Visual (8))
Steps at the start of a titration are shown. Both appropriate and inappropriate examples are included.

Inspecting the Buret (Procedures and Mistakes) (Movie/Animation, Audio/Visual (8))
Students should carefully inspect a buret and stopcock before use. Both appropriate and inappropriate examples are included.

Transferring a 25-Milliliter Sample (Movie/Animation, Audio/Visual (7))
A 25-milliliter volumetric pipet is used to remove a sample from a volumetric flask and transfer it to an Erlenmeyer flask.

Obtaining Titrant (Procedures and Mistakes) (Movie/Animation, Audio/Visual (7))
Students should obtain the needed amount of titrant in a beaker that was first rinsed with titrant. Both appropriate and inappropriate examples are included.

Rinsing the Buret with Water (Procedures and Mistakes) (Movie/Animation, Audio/Visual (7))
Before use, a buret should be inspected, rinsed with distilled water, and washed if necessary. Both appropriate and inappropriate examples are included.

Inspect and Adjust the Stopcock (Procedures and Mistakes) (Movie/Animation, Audio/Visual (6))
A stopcock should be inspected and adjusted if necessary. Both appropriate and inappropriate examples are included.

Titration Curves - Colors of Indicators - Animations (Movie/Animation, Audio/Visual (6))
These animations show how the indicator color in a titration flask changes as titrant is added.

Initial Buret Reading (Procedures and Mistakes) (Movie/Animation, Audio/Visual (5))
The meniscus should be viewed from eye level with a consistent background and recorded in the laboratory notebook. Both appropriate and inappropriate examples are included.

Transferring a Liquid (Movie/Animation, Audio/Visual (4))
Quantitative transfer of a liquid with a Mohr pipet, a volumetric pipet, and a digital pipettor is demonstrated.

Perform Titration (Procedures and Mistakes) (Movie/Animation, Audio/Visual (4))
The steps in a titration include reading and recording the initial volume, delivering titrant, observing the endpoint, and reading and recording the final buret volume. Both appropriate and inappropriate examples are included.

Final Buret Reading (Procedures and Mistakes) (Movie/Animation, Audio/Visual (4))
The meniscus should be read in the same manner as the initial reading. Both appropriate and inappropriate examples are included.

Do Not View Meniscus From Below (Movie/Animation, Audio/Visual (4))
Here is what the student would see if the meniscus were viewed from below.

Do Not View Meniscus From Above (Movie/Animation, Audio/Visual (4))
Here is what the student would see if the meniscus were viewed from above.

Viewing Meniscus At Eye Level (Movie/Animation, Audio/Visual (4))
Here is what the student would see if the meniscus were viewed from eye level.

Deliver Quickly Flowing Drops (Procedures and Mistakes) (Movie/Animation, Audio/Visual (4))
Quickly flowing drops (about 2 per second) of titrant are delivered and several possible results are presented.

Deliver Five Second Flow (Procedures and Mistakes) (Movie/Animation, Audio/Visual (4))
A five second flow of titrant is delivered and several possible results are presented.

Do Not View Meniscus From Below (Movie/Animation, Audio/Visual (4))
Here is what the student would see if the meniscus were viewed from below.

Do Not View Meniscus From Above (Movie/Animation, Audio/Visual (4))
Here is what the student would see if the meniscus were viewed from above.

Viewing Meniscus At Eye Level (Movie/Animation, Audio/Visual (4))
Here is what the student would see if the meniscus were viewed from eye level.

Prepare for Titration (Procedures and Mistakes) (Movie/Animation, Audio/Visual (4))
Steps illustrated include obtaining titrant, rinsing a buret, filling a buret, and adding indicator. Both appropriate and inappropriate examples are included.

Crystal Violet (Movie/Animation, Audio/Visual (4))
Animations show the color change due to crystal violet in several acid-base titrations.

Alizarin Yellow GG (Movie/Animation, Audio/Visual (4))
Animations show the color change due to alizarin yellow GG in several acid-base titrations.

Bromthymol Blue (Movie/Animation, Audio/Visual (4))
Animations show the color change due to bromthymol blue in several acid-base titrations.

Methyl Orange (Movie/Animation, Audio/Visual (4))
Animations show the color change due to methyl orange in several acid-base titrations.

Bromophenol Blue (Movie/Animation, Audio/Visual (4))
Animations show the color change due to bromophenol blue in several acid-base titrations.

Phenolphthalein (Movie/Animation, Audio/Visual (4))
Animations show the color change due to phenolphthalein in several acid-base titrations.

Weigh a Solid Sample (Procedures and Mistakes) (Movie/Animation, Audio/Visual (4))
Correctly and incorrectly performed steps in weighing a solid sample are shown.

Acid-Base Titrations and Animation (Movie/Animation, Audio/Visual (4))
Videos in this group show titrations of various acids with sodium hydroxide as well as molecular reactions during titration.

Titration (Movie/Animation, Audio/Visual (3))
A large number of movies and images dealing with titration procedures and techniques are presented.

Volumetric Pipet (Movie/Animation, Audio/Visual (3))
A volumetric pipet is used to transfer liquid samples of a known volume.

Variations in Technique for Handling Stopcocks (Movie/Animation, Audio/Visual (3))
Three techniques for using stopcocks including right and left hand control are demonstrated.

Titration (Procedures and Mistakes) (Movie/Animation, Audio/Visual (3))
Correctly and incorrectly performed steps in a titration are shown.

Wash Down Titrant (Procedures and Mistakes) (Movie/Animation, Audio/Visual (3))
The sides of the flask are rinsed to be sure all titrant delivered is in bottom of the flask and several possible results are shown.

Touch off (Procedures and Mistakes) (Movie/Animation, Audio/Visual (3))
The last hanging drop of titrant is touched off and rinsed down and several possible results are presented.

Deliver Slowly Flowing Drops (Procedures and Mistakes) (Movie/Animation, Audio/Visual (3))
Slow flowing drops of titrant are delivered and several possible results are presented.

Deliver Quick Squirt (Procedures and Mistakes) (Movie/Animation, Audio/Visual (3))
A quick squirt of titrant is delivered and several possible results are presented.

Deliver Long Squirt (Procedures and Mistakes) (Movie/Animation, Audio/Visual (3))
A long squirt (about 0.7 seconds) of titrant is delivered and several possible results are presented.

Redox Titration and Animation (Movie/Animation, Audio/Visual (2))
A simple redox titration (hydrogen peroxide with permanganate) is performed. Also an animation demonstrates aspects of the stoichiometry.

Conductimetric Titration (Movie/Animation, Audio/Visual (2))
Aqueous sulfuric acid and barium hydroxide both conduct electricity; distilled water does not. As barium hydroxide solution is added to sulfuric acid, conductivity decreases until it reaches zero at the equivalence point. As excess barium hydroxide is added, the conductivity gradually increases.

Quantitative Acid-Base Titration (Movie/Animation, Audio/Visual (2))
An acid-base titration is demonstrated along with variations in technique for handling stopcocks.

Deliver One Drop (Procedures and Mistakes) (Movie/Animation, Audio/Visual (2))
One drop of titrant is delivered and two possible results are presented.

Adding the Indicator (Procedures and Mistakes) (Movie/Animation, Audio/Visual (2))
It is crucial that indicator be added to the sample to be titrated. Both appropriate and inappropriate examples are included.

Prepare the Buret (Procedures and Mistakes) (Movie/Animation, Audio/Visual (2))
The buret and stopcock must be inspected and the buret rinsed prior to use. Both appropriate and inappropriate examples are included.

Titration Curves (Movie/Animation, Audio/Visual (2))
Drawing titration curves, titration curves for various types of acid-base titration, and depictions of color change observed during a titration using several different pH indicators are presented.

Redox Titration and Animation (Movie/Animation, Audio/Visual (2))
Videos in this group show a redox titration and the molecular changes during the titration.

Delivering Titrant (Procedures and Mistakes) (Movie/Animation, Audio/Visual (11))
Several techniques for delivering titrant are demonstrated. Both appropriate and inappropriate examples are included.

A Complete Acid-Base Titration (Movie/Animation, Audio/Visual (10))
A solid acid is dissolved in deionized water and titrated with sodium hydroxide solution using the color change of an indictor to determine the endpoint.

A Complete Acid-Base Titration (Movie/Animation, Audio/Visual (10))
A solid acid is dissolved in deionized water and titrated with sodium hydroxide solution using the color change of an indictor to determine the endpoint.

Filling the Buret With Titrant (Procedures and Mistakes) (Movie/Animation, Audio/Visual (10))
Alternate methods of filling a buret with and without a funnel are shown. Both appropriate and inappropriate examples are included.

Rinsing the Buret with Titrant (Procedures and Mistakes) (Movie/Animation, Audio/Visual (10))
The buret walls and tip should be thoroughly rinsed with a small amount of titrant. Both appropriate and inappropriate examples are included.

Acids_and_Bases : TitrationCurveKaKb (8 Variations) (Assessment Material (1))
Study the graph of the titration of a weak acid with a strong base shown below. What is the approximate K_a for this acid?

ChemPaths 104 F Apr 15 ()
Today in Chem 104: * Lecture: Titration; Lewis Acids and Bases * Reading: Kotz: Ch. 18, Sec. 3; Ch. 17, Sec. 9 Moore: Ch. 17, Sec. 2; Ch. 16, Sec. * Homework #10 due by 11:55 PM tonight

Acid Value (AV) and the quality of fats and oils ()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.

Titration of Citric acid in 7-up and Vitamin C ()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.

Determining Vitamin C in Foods ()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.