http://www.instructables.com Fri, 24 May 2013 03:17:54 PDT BLOX v1.01 http://www.instructables.com/id/Genie-In-A-Bottle/ http://www.instructables.com/files/deriv/F0S/O5VW/FBU346TH/F0SO5VWFBU346TH.SQUARE2.jpg http://www.instructables.com/files/deriv/F0S/O5VW/FBU346TH/F0SO5VWFBU346TH.SQUARE.jpg http://www.instructables.com/files/deriv/F0S/O5VW/FBU346TH/F0SO5VWFBU346TH.SMALL.jpg kentchemistry.com This Demonstration shows the catalytic decomposition of hydrogen peroxide. 100mL of 30% hydrogen peroxide is pour into a flask that is wrapped in aluminum foil. A small packet of 2 grams of manganesse dioxide MnO2 is wedged between the rubber stopper and the rim of the glass. When opened the packe...
By: kentchemistry.com

Continue Reading »]]> Thu, 24 Jan 2008 20:33:46 PST http://www.instructables.com/id/Elephant-Toothpaste-Chemistry/ http://www.instructables.com/files/deriv/F2P/RDQJ/FBU346XM/F2PRDQJFBU346XM.SQUARE2.jpg http://www.instructables.com/files/deriv/F2P/RDQJ/FBU346XM/F2PRDQJFBU346XM.SQUARE.jpg http://www.instructables.com/files/deriv/F2P/RDQJ/FBU346XM/F2PRDQJFBU346XM.SMALL.jpg kentchemistry.com This experiment shows the decomposition of hydrogen peroxide catalyzed by potassium iodide. The reaction is done in a tall graduated cylinder so that the foamy product shoots out very quickly in a tall cylindrical shape; hence, the name elephant toothpaste. Materials: tall graduated cylinder (at le...
By: kentchemistry.com

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