An aqueous ethylene glycol (HOCH, CH, OH, FW = 62.07 g/mol) solution with a mass of 220.9 mg is titrated with 33.7 mL of 0.0839 M Ce+ in 4 M HCIO,. The solution is held at 60 °C for 15 min to oxidize the ethylene glycol to formic acid ( HCO,H) and carbon dioxide. The excess Ce+ is titrated with 11.03 mL of 0.0447 M Fe2+ to a ferroin end point. What is the mass percent of ethylene glycol in the unknown solution? 9.2 mass percent = |% Incorrect

An aqueous ethylene glycol (HOCH, CH, OH, FW = 62.07 g/mol) solution with a mass of 220.9 mg is titrated with 33.7 mL of 0.0839 M Ce+ in 4 M HCIO,. The solution is held at 60 °C for 15 min to oxidize the ethylene glycol to formic acid ( HCO,H) and carbon dioxide. The excess Ce+ is titrated with 11.03 mL of 0.0447 M Fe2+ to a ferroin end point. What is the mass percent of ethylene glycol in the unknown solution? 9.2 mass percent = |% Incorrect

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter4: Reactions In Aqueous Solution

Section: Chapter Questions

Problem 78QAP: When 85.0 mL of 0.250 M Ba(OH)2 solution is added to 85.00 mL of 0.250 M Al (NO3)3 solution, a white...

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The Handbook of Chemistry and Physics (http://openstaxcollege.org/l/16Handbook) gives solubilities of the following compounds in grams per 100 mL of water. Because these compounds are only slightly soluble, assume that the volume does not change on dissolution and calculate the solubility product for each. (a) BaSiF6, 0.026 g/100 mL (contains SiF62- ions) (b) Ce(IO3)4, 1.5102 g/100 mL (c) Gd2(SO4)3, 3.98 g/100 mL (d) (NH4)2PtBr6, 0.59 g/100 mL (contains PtBr62- ions)
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