Videos

ChemEd X Subscribers enjoy access to a large collection of videos and the associated still images.

The ChemEd X video collection includes modernized versions of the Chemistry Comes Alive! video collection. In addition to this award-winning collection, contributors continue to create some very interesting video.

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by ChemEd X
Wed, 12/04/2013 - 16:54

A square piece of an index card with graphite (from a pencil lead) applied to one side is immersed in a beaker containing hexane and water (two layers). The graphite-coated side always faces the hexane layer.

Recent activity: 3 months 2 weeks ago
by ChemEd X
Wed, 12/04/2013 - 16:17

More precisely, this barometer is made using an aqueous solution of potassium tetraiodomercurate(II)].

Recent activity: 3 months 3 weeks ago
by ChemEd X
Wed, 12/04/2013 - 16:17
Recent activity: 3 months 3 weeks ago
by ChemEd X
Fri, 11/29/2013 - 17:31
Recent activity: 3 months 3 weeks ago
by ChemEd X
Fri, 11/29/2013 - 17:28

Water and diethyl ether are shaken in a separatory funnel with a small amount of red indophenol. The non-ionic indophenol remains in the ether layer, coloring it red. Addition of sodium hydroxide converts the indophenol to its blue ionic acid anion which is extracted into the water layer turning it blue.

Recent activity: 3 months 3 weeks ago
by ChemEd X
Fri, 11/29/2013 - 17:28

Water and diethyl ether are shaken in a separatory funnel with a small amount of red indophenol. The non-ionic indophenol remains in the ether layer, coloring it red. Addition of sodium hydroxide converts the indophenol to its blue ionic acid anion which is extracted into the water layer turning it blue.

Recent activity: 3 months 3 weeks ago
by ChemEd X
Fri, 11/29/2013 - 17:28

Water and diethyl ether are shaken in a separatory funnel with a small amount of red indophenol. The non-ionic indophenol remains in the ether layer, coloring it red. Addition of sodium hydroxide converts the indophenol to its blue ionic acid anion which is extracted into the water layer turning it blue.

Recent activity: 3 months 3 weeks ago
by ChemEd X
Fri, 11/29/2013 - 17:28
Recent activity: 3 months 3 weeks ago
by ChemEd X
Fri, 11/29/2013 - 17:28
Recent activity: 3 months 3 weeks ago
by ChemEd X
Fri, 11/29/2013 - 17:28
Recent activity: 3 months 3 weeks ago