Q4. A 5.00 mL aqueous sample containing hydrogen peroxide was diluted to 25 mL and analyzed by titration with permanganate in acidic pH: GER Mn04 + H202 → 02 + Mn2+ The sample required 84.2 mL of 0.0175 M permanganate to reach the endpoint. concentration of hydrogen peroxide in the original sample? NOT COPY NERSITY is the

Q4. A 5.00 mL aqueous sample containing hydrogen peroxide was diluted to 25 mL and analyzed by titration with permanganate in acidic pH: GER Mn04 + H202 → 02 + Mn2+ The sample required 84.2 mL of 0.0175 M permanganate to reach the endpoint. concentration of hydrogen peroxide in the original sample? NOT COPY NERSITY is the

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.29QAP

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Give the proper scientific description of 50x TAE Buffer given the information below. 242 g Tris base 57.1 mL glacial acetic acid 18.61 g disodium EDTA Up to 1L with dI water
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One of the tests she conducted was EDTA titration to determine the hardness of the water. For this experiment, two 150.0 mL samples were utilized. The first sample required 7.45 mL of 0.02055 M EDTA titrant to reach the endpoint at a pH of 10.00. The second sample was titrated at pH = 13.0 to precipitate Mg(OH)2, and 5.55 mL of the same titrant was used to attain the endpoint. (MW: Ca = 40.08 g/mol, Mg = 24.31 g/mol, CaCO3 = 100.087 g/mol, MgCO3 = 84.314 g/mol) What is the total hardness of the water? What is concentration of Ca & Mg in the water sample? Express the answer in ppm.
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