TIGER

Videos: 13 results
Electrochemistry  
Reactions exploring electrochemical concepts.
Electrochemistry
Electrolysis-Water  
This experiment demonstrates the electrolysis of water.
Electrochemistry |
Water / Water Chemistry
Electrolysis of Aqueous Solutions -- Original  

Electrolysis of several aqueous solutions is carried out using a 9-V battery and pencil leads as electrodes. Because only the electrodes are shown in the videos, it is important to show these still images

 

or describe how the reactions were performed if students are to make sense of the videos. In each case the anode is on the left and a 9-V battery has been connected to the lead of each of the pencils near the eraser end with an alligator clip.

A newer version of most of these reactions using platinum electrodes is available as Electrolysis of Aqueous Solutions -- New.


Aqueous Solution Chemistry |
Electrochemistry
Overvoltage  
Zinc metal reacts with hydrochloric acid, generating hydrogen gas. However, when a strip of nickel, copper, platinum or lead is placed in hydrochloric acid, no reaction is observed.
Descriptive Chemistry |
Electrochemistry
Metal-Iodine Reactions and Cells  
Electrochemical reactions are demonstrated and then used to do work.
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials
Gas Producing  
Electrolysis of solutions with only gas(es) produced is shown.
Aqueous Solution Chemistry |
Electrochemistry |
Oxidation / Reduction
Tin Compounds  
Electrolysis of tin(II) and tin(IV) solutions of different concentrations is shown.
Aqueous Solution Chemistry |
Electrochemistry |
Oxidation / Reduction
Solid Producing  
Electrolysis of solutions in which a solid is produced is shown.
Aqueous Solution Chemistry |
Electrochemistry |
Oxidation / Reduction
Electrolysis of Aqueous Solutions -- New  
This is a revised version of the previously published Electrolysis of Aqueous Solutions, providing corrections and additional images. In order to understand most of these videos it is important to either see the Complete Experiment: Electrolysis of an Aqueous Solution video or to be able to read a description of that video (such as the one in the Discussion section for that video).
Aqueous Solution Chemistry |
Electrochemistry |
Oxidation / Reduction
HCl, NaOH, NaCl and Water  
Electrolysis of HCl, NaOH and NaCl solutions and of water is shown.
Aqueous Solution Chemistry |
Electrochemistry |
Oxidation / Reduction |
Water / Water Chemistry
Electrochemical Series: Metal Trees  
A piece of metal (Cu, Zn, Ag, Cd, or Pb) is placed in an aqueous solution of a metal ion (Cu2+, Zn2+, Ag+, Cd2+, or Pb2+). In some cases the growth of metal crystals indicates that a chemical reaction has occurred.
Aqueous Solution Chemistry |
Oxidation / Reduction |
Electrolytic / Galvanic Cells / Potentials |
Electrochemistry
Electrolysis  
Various examples of electrolysis are presented.
Aqueous Solution Chemistry |
Electrochemistry |
Oxidation / Reduction |
Water / Water Chemistry |
Acids / Bases |
pH |
Conductivity
Oxidation-Reduction (Redox) Reactions  
Demonstrations exploring oxidation/reduction chemistry.
Aqueous Solution Chemistry |
Electrochemistry |
Oxidation / Reduction |
Water / Water Chemistry |
Acids / Bases |
pH |
Conductivity |
Reactions |
Applications of Chemistry |
Descriptive Chemistry |
Electrolytic / Galvanic Cells / Potentials |
Laboratory Equipment / Apparatus