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【Daily Question】May 5, 2018: Participation +2 Wealth; +3 to +10 wealth for correct answers

2018-05-05View Original

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Fill-in-the-blank: The oxygen cylinder combustion method is used to determine a chlorine-containing sample. A sample weighing 2.636 g was taken; 26.26 mL of the Hg(NO3)2 standard solution was required to titrate the sample, while 8.06 mL was needed for the blank test. If the concentration of the Hg(NO3)2 standard solution is 0.9807 mol/L, then the mass percentage of chlorine in this sample is ( ). 48.08%

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