ChemEd DL Resource Groups

33 Results

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

Measuring (Movie/Animation, Audio/Visual (9))
Measurement of electrical properties, mass, pH, pressure, volume, and temperature are demonstrated along with examples of recording data, spectroscopy, and titration.

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.

Solid from Dish to Beaker to Volumetric Flask (Movie/Animation, Audio/Visual (7))
Steps in the preparation of a solution include the quantitative transfer of a solid from a weighing dish to beaker, dissolving the solid, transfer of the solution to a volumetric flask, dilution to the mark, and mixing.

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.

Solid from Dish to Volumetric Flask (Movie/Animation, Audio/Visual (6))
Steps in the preparation of a solution include the quantitative transfer of a solid from a weighing dish to a volumetric flask, dilution to the mark, and mixing.

Quantitative Weighing (Movie/Animation, Audio/Visual (5))
Techniques for quantitatively transferring solid while weighing are demonstrated.

Volume (Movie/Animation, Audio/Visual (5))
Burets, graduated cylinders, pipets, and volumetric flasks are demonstrated.

Buret (Movie/Animation, Audio/Visual (5))
Techniques required to use a buret are demonstrated.

Quantitative Weighing of a Solid Sample (Movie/Animation, Audio/Visual (5))
Techniques for quantitatively transferring solid while weighing are demonstrated.

Mixing (Movie/Animation, Audio/Visual (5))
Mechanical and manual techniques for mixing substances are demonstrated.

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.

Quantitative Techniques in Volumetric Analysis (Movie/Animation, Audio/Visual (4))
Here are demonstrations of various techniques of quantitative weighing and transferring solids, transferring liquids and volumetric titration.

Pipets (Movie/Animation, Audio/Visual (4))
Mohr pipets, volumetric pipets, pipet bulbs, and digital pipettors are demonstrated.

Quantitative Transfer of a Solid with a Finger-Held Weighing Bottle (Movie/Animation, Audio/Visual (4))
A solid is quantitatively transferred using a finger-held weighing bottle.

Quantitative Transfer of a Solid with a Weighing Spoon (Movie/Animation, Audio/Visual (4))
A weighing spoon is used to quantitatively transfer a solid that is being weighed.

Magnetic Stirrer (Movie/Animation, Audio/Visual (4))
A magnetic stirrer is used to mix liquids. Some possible problems in using the stirrer are presented.

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.

Volumetric Pipet Topics (Movie/Animation, Audio/Visual (3))
Techniques for using a volumetric pipet to transfer a known volume of liquid are demonstrated.

Mass (Movie/Animation, Audio/Visual (3))
Three types of electronic balances are demonstrated.

Quantitative Weighing Errors (Movie/Animation, Audio/Visual (3))
Three common errors in weighing are demonstrated: using a container that is too large, improper or inconsistent use of the tare function and failure to open and close the balance door.

Quantitative Transfer of a Solid with a Spatula (Movie/Animation, Audio/Visual (3))
A spatula is used to quantitatively transfer a solid to be weighed.

Manipulating-Transferring Samples (Movie/Animation, Audio/Visual (3))
Laboratory equipment and techniques used to heat, cool, mix, and transfer samples of liquids and solids are shown.

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

Volumetric Flask (Movie/Animation, Audio/Visual (2))
The purpose of the volumetric flask is discussed and its use is demonstrated.

Quantitative Preparation of a Solution with a Solid and Deionized Water (Movie/Animation, Audio/Visual (2))
Two methods of quantitative preparation a solution from a weighed solid sample are demonstrated.

Volumetric Pipet (Movie/Animation, Audio/Visual (2))
Use of volumetric pipets is demonstrated.

Precision of Measurement (Movie/Animation, Audio/Visual (2))
The precision of several types of glassware for measuring volume is demonstrated and discussed.

Analytical Balance (Movie/Animation, Audio/Visual (2))
Procedures for using an analytical balance to accurately weigh solid samples are demonstrated.

Quantitative Transfer of a Solid with a Paper Strap-Held Bottle (Movie/Animation, Audio/Visual (2))
A solid is quantitatively transferred using a paper strap-held bottle.

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.