QUESTION 12 Analysis of an Iron Complex In Part B of this experiment, the oxalate content of the green crystals is analyzed by titration of a sample solution with potassium permanganate (KMnO4). Which statement correctly describes the endpoint in this titration? Preparation & Analysis of Iron Complex.pdf O A. The appearance of a permanent pale pink color, indicating the color change of phenolphthalein. O B. None of these is an accurate description. OC. The appearance of a permanent dark purple color, indicating the presence of undissociated KMnO4 in solution. O D. The disappearance of the solid white precipitate. O E. The appearance of a permanent pale pink color, indicating the presence of excess MnO4 ion.

QUESTION 12 Analysis of an Iron Complex In Part B of this experiment, the oxalate content of the green crystals is analyzed by titration of a sample solution with potassium permanganate (KMnO4). Which statement correctly describes the endpoint in this titration? Preparation & Analysis of Iron Complex.pdf O A. The appearance of a permanent pale pink color, indicating the color change of phenolphthalein. O B. None of these is an accurate description. OC. The appearance of a permanent dark purple color, indicating the presence of undissociated KMnO4 in solution. O D. The disappearance of the solid white precipitate. O E. The appearance of a permanent pale pink color, indicating the presence of excess MnO4 ion.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.19QAP

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