Show all pertinent calculations. Express final answer up to 4 decimal places I. STANDARDIZE THE NazS2O3.5H;O WITH KIO3. Weight of KIO = 0.5325 g. V of KIO3 = 250 mL

Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
Author:Skoog
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Chapter5: Errors In Chemical Analyses
Section: Chapter Questions
Problem 5.9QAP
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Show all pertinent calculations. Express final answer up to 4 decimal places.
I.
STANDARDIZE THE NazS2O3.5H;O WITH KIO3.
Weight of KIO = 0.5325 g.
Vof KIO3 = 250 ml
N KIO3
V KIO3, ml
7.0
7.0
VNazs2O3.5H2O, mL
8.2
7.5
N NazszO3.5H20
Average N NazszO3.5H;O
2. DETERMINE THE CONCENTRATION OF IODINE SOLUTION. (N of lodine solution 0.0584N)
Vl, mL
7
7.0
VNA2S2O3.5H2O, mL
6.7
8.2
NI2
Average N2
Weight of I2, g
Weight of 250 mL sample, g
% 12
Transcribed Image Text:Show all pertinent calculations. Express final answer up to 4 decimal places. I. STANDARDIZE THE NazS2O3.5H;O WITH KIO3. Weight of KIO = 0.5325 g. Vof KIO3 = 250 ml N KIO3 V KIO3, ml 7.0 7.0 VNazs2O3.5H2O, mL 8.2 7.5 N NazszO3.5H20 Average N NazszO3.5H;O 2. DETERMINE THE CONCENTRATION OF IODINE SOLUTION. (N of lodine solution 0.0584N) Vl, mL 7 7.0 VNA2S2O3.5H2O, mL 6.7 8.2 NI2 Average N2 Weight of I2, g Weight of 250 mL sample, g % 12
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