Summary:
Provides the details on a experiment on redox reactions. Attempts to predict a number or redox reactions from a table or relative reactivities of some common oxidants and reductants, and then to check these predictions by experiment.
To predict a number of redox reactions from a table of relative reactivities of some common oxidants and reductants, and then to check these predictions by experiment.
APPARATUS
The following materials are required in order to complete this experiment:
,,XReaction palette or set of semi-micro test tubes and stand
,,XClean plastic tray
,,XLatex gloves
,,XGoggles
,,XSet of small dropper bottles containing each of the following:
fæFreshly prepared FeSO4
fæ0.1M FeCl3 solution
fæ1M sulfuric acid, H2SO4
fæ0.1M H2O2 solution
fæ0.1M KSCN solution
fæ0.1M K3Fe(CN)6
fæFreshly prepared 0.1M KI solution
fæ0.1M sulfurous acid solution, H2SO3
fæ 0.1M K2Cr2O7
fæFreshly prepared starch solution.
PROCEDURE
- Add 10 drops of hydrogen peroxide solution to one test tube or to the palette, then a few drops of sulfuric acid. Then slowly add a few drops of iron (II) sulfate solution. Record your observations. If you predicted the formation of Fe3+ ions and a change appears to have.....
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