Exercise: Dissolved Oxygen Determination in Water by Modified Winkler Method Question 1: Write the chemical equation for the addition of MnSO4 and alkali- iodide-sodium azide in the water sample. Question 2: What is the chemical identity of the white precipitate formed after addition of MnSO4 and alkali-iodide-sodium azide in the water sample. Question 3: Explain the formation of the blue color when starch was added.
Exercise: Dissolved Oxygen Determination in Water by Modified Winkler Method Question 1: Write the chemical equation for the addition of MnSO4 and alkali- iodide-sodium azide in the water sample. Question 2: What is the chemical identity of the white precipitate formed after addition of MnSO4 and alkali-iodide-sodium azide in the water sample. Question 3: Explain the formation of the blue color when starch was added.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Exercise: Dissolved Oxygen Determination in Water by Modified Winkler Method
Question 1: Write the chemical equation for the addition of MnSO4 and alkali- iodide-sodium azide in the water sample.
Question 2: What is the chemical identity of the white precipitate formed after addition of MnSO4 and alkali-iodide-sodium azide in the water sample.
Question 3: Explain the formation of the blue color when starch was added.
Question 4: Explain the difference between iodometry and iodimetry. Is the method used in this experiment an iodometric or iodimetric titration?
Question 5: What is the basis of the ‘8000’ in the equation for DO?
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