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How many milliliters of 0.100 M KI are needed to react with 40.0 ml of 0.040 M Hg2(NO3)2 if the reaction is Hg22+ +

How many milliliters of 0.100 M KI are needed to react with 40.0 ml of 0.040 M Hg2(NO3)2 if the reaction is Hg22+ + 21 Hg2l2 (3)? An empty 10 ml volumetric flask weighs 10.263 4g. When the flask is filled to the mark with distilled water and weighed again in the air at 20C, the mass is 20.214 4g. What is the true volume of the flask at 20C?

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