New answers tagged home-experiment
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Fire requires three things: heat, fuel and oxygen. When burning a cotton ball, a match will provide heat, the cellulose fibers will provide fuel and the air will provide oxygen. It is the amount of oxygen in the air that causes the cotton to burn relatively slowly. By soaking the cotton in Sulfuric Acid and Nitric Acid, the hydrogens that were attached to ...
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Things are more complex than you suppose
There are two key reasons why these compounds burn with different smells.
The first is that your assumption about what the substances contain is wrong. Biological fibres contain plenty other than carbon and hydrogen. Often they will have lots of nitrogen and sulphur and various other elements and these often produce ...
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Starch makes a glue or a paste with water. Humidity from the air may be sufficient to transform your starch into a glue. Water produces strong hydrogen bridges between starch molecules. This transforms a pile of independent starch molecules into a strong block of interconnected starch molecules.
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On 2019-11-29 Ben Krasnow uploaded a YouTube video DIY mass spectrometer measures potassium in dietary salt substitute showing an outstanding construction of a mass-spec apparatus in his home shop based on the articles by Dewdney [1] and Stong [2] with some variations and improvements, like altered electrical scheme and increased emission current.
The main ...
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Not by a homebuilt mass spectrometer, you can't. At least not with a reasonable amount of effort.
A mass spectrometer is a very complicated and sensitive charged-particle optics instrument. A useful mass spectrometer for materials that are not a gas or vapor at near room temperature is far more complicated and expensive than that. A mass spectrometer ...
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