Answer to Question #178615 in General Chemistry for Patty

Question #178615

Why must the difference between the water level in the eudiometer tube and the water level in the beaker be measured?


1
Expert's answer
2021-04-08T12:16:12-0400

There must be the difference between the water level in the eudiometer tube and the water level in the beaker be measured

As


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eudiometer is a laboratory device that measures the change in volume of a gas mixture following a physical or chemical change.


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The pressure of the gases in the eudiometer tube must equal the atmospheric pressure. If the water levels are not at he same height, then this is not the case. Therefore, in order to account for this difference and get accurate results, you must subtract the water levels and convert to mmHg.



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