【Daily Question】Chemical Analysis Edition 2018.12.31
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This post was last edited by zjp on 2018-12-31 08:18. Multiple-choice question: Which of the following operations is incorrect? (). A. When preparing the NaOH standard solution, measure the water using a measuring cylinder. B. Store the AgNO3 standard solution in a brown bottle with a rubber stopper. C. Store the Na2S2O3 standard solution in a brown flask with a narrow mouth. D. When titrating Ca2+ with the EDTA standard solution, the titration rate should be fast. BD
CD: When titrating Ca2+ with an EDTA standard solution, the titration rate should be faster