A student performed an experiment on the determination of dissolved oxygen in a water sample using the Winkler Titration Method. What is the amount of (A) dissolved oxygen and (B) oxygen in the water sample? Use the data and results recorded by the student in the table below. (A) What is the amount of dissolved oxygen in the water sample? * a) 4.0864 mg/L b)0.4085 mg/L c)2.6198 mg/L d)0.2620 mg/L (B) What is the amount of oxygen in the water sample? * a)4.0864 mg b)0.4085 mg c)2.6198 mg d)0.2620 mg
A student performed an experiment on the determination of dissolved oxygen in a water sample using the Winkler Titration Method. What is the amount of (A) dissolved oxygen and (B) oxygen in the water sample? Use the data and results recorded by the student in the table below. (A) What is the amount of dissolved oxygen in the water sample? * a) 4.0864 mg/L b)0.4085 mg/L c)2.6198 mg/L d)0.2620 mg/L (B) What is the amount of oxygen in the water sample? * a)4.0864 mg b)0.4085 mg c)2.6198 mg d)0.2620 mg
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A student performed an experiment on the determination of dissolved oxygen in a water sample using the Winkler Titration Method. What is the amount of (A) dissolved oxygen and (B) oxygen in the water sample? Use the data and results recorded by the student in the table below.
(A) What is the amount of dissolved oxygen in the water sample? *
a) 4.0864 mg/L
b)0.4085 mg/L
c)2.6198 mg/L
d)0.2620 mg/L
(B) What is the amount of oxygen in the water sample? *
a)4.0864 mg
b)0.4085 mg
c)2.6198 mg
c)2.6198 mg
d)0.2620 mg
Transcribed Image Text:Volume of Sodium Thiosulfate
20.84 mL
used in Titration
Volume of Water Sample
100 mL
Established Relationship
10 mL of 0.0125 M Na2S2O3 = 1 mg/L O2
%3D
Concentration of Standardized 0.0245 N
Sodium Thiosulfate
Amount of Dissolved Oxygen in (A)
the Water Sample
Amount of Oxygen in the Water (B)
Sample
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