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【Daily Question】Chemical Analysis Version, 4.13.2020

2020-04-13View Original

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This post was last edited by zjp on 2020-4-13 08:38. Multiple-choice question: When determining the halogen content using the oxygen cylinder combustion method, if the stopper of the combustion flask is opened before the brown smoke in it disappears after the sample has been decomposed, it will affect the measurement result (). A、High B、Low C、High or low D、The brown substance is unrelated to the substance being measured and does not affect the measurement results B

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