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The bottle is filled with water, inverted, and placed into the pneumatic trough already containing water. The outlet tube from the gas-generating apparatus is inserted into the opening of the bottle so that gas can bubble up through it, displacing the water within.
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in pneumatic troughs, but usually only for the collection of water-soluble gases. Health and safety issues surrounding mercury generally prohibit its use in modern-day pneumatic troughs.
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Pneumatic troughs require a liquid such as water. Scientists also have used
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Parascandola, John; Ihde, Aaron (1969). "History of the
Pneumatic Trough".
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224:"Direct electrosynthesis of 52% concentrated CO on silver's twin boundary"
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The trough itself, which is a large glass dish or a similar container.
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is a piece of laboratory apparatus used for collecting gases, such as
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Four items are required for gas collection with a pneumatic trough:
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Tang, Can; Gong, Peng; Xiao, Taishi; Sun, Zhengzong (2021-12-13).
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Pneumatic trough with bulb suspended from hanger, as invented by
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Günther, Matthias; Joemann, Michael; Csambor, Simon.
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72:or a hanger (as with Stephen Hales' design).
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178:"Chapter 5: Parabolic Trough Technology"
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274:"Impact of a water-filled bottle"
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134:References
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