preparation and properties of gases - oxygen (video) august 2nd 2008
Update: 2008-08-02
Description
This chemistry video podcast demonstrates the laboratory production of oxygen gas, using thistle funnel, conical flask, gas jar, pneumatic trough, behive shelf and hydrogen peroxide decomposition (catalysed by manganese dioxide), its collection via the downward displacement of water and the subsequent testing that can be performed by reignition of a glowing wick.
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