Chemistry Analysis of Oxalate Complex or Unknown(The unknown oxalate titration will use the same reaction as Part B. The theoretical % oxalate of your samples are 52%) 2MnO41- (aq) + 5C2O42- (aq) + 16H1+ (aq) à 10CO2 (g) + 8H2O (l) + 2Mn2+ (aq)mMoles of KMnO4: Trial 1= 0.0323 Trial 2= 0.0208 Trial 3: 0.0303Mass of SampleTrial 1Trial 2Trial 3Weighing bottle Initial mass163.757g129.203g167.423gWeighing bottle Final mass163.970g129.458g167.630gMass of Sample0.213g0.255g0.207gTitration Final reading41.98mL15.51mL32.90mLInitial reading26.50mL0.90mL15.51mLVolume of KMnO415.48mL14.61mL17.39mLCalculations Millimoles of Oxalate, C2O4^2-???Mass of Oxalate, C2O4^2-???Percent Oxalate, C2O4^2-???The answer to some of the question marks have to be one of these, I'm having a hard time with this.-mMoles of Oxalate, C2O4^2- in trials 1,2, and 31. 1.122. 1.333. 1.184. 2.03The answer the other question marks have to be one of these-% Oxalate, C2O4^2- in trials 1,2 and 31. 48.82.48.03.56.64. 38.6

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Answered: Millimoles of Oxalate, C2O4^2- ? ? ?…

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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Chemistry

Analysis of Oxalate Complex or Unknown

(The unknown oxalate titration will use the same reaction as Part B. The theoretical % oxalate of your samples are 52%)
2MnO41- (aq) + 5C2O42- (aq) + 16H1+ (aq) à 10CO2 (g) + 8H2O (l) + 2Mn2+ (aq)

mMoles of KMnO4: Trial 1= 0.0323 Trial 2= 0.0208 Trial 3: 0.0303

Mass of Sample	Trial 1	Trial 2	Trial 3
Weighing bottle Initial mass	163.757g	129.203g	167.423g
Weighing bottle Final mass	163.970g	129.458g	167.630g
Mass of Sample	0.213g	0.255g	0.207g
Titration
Final reading	41.98mL	15.51mL	32.90mL
Initial reading	26.50mL	0.90mL	15.51mL
Volume of KMnO4	15.48mL	14.61mL	17.39mL
Calculations
Millimoles of Oxalate, C2O4^2-	?	?	?
Mass of Oxalate, C2O4^2-	?	?	?
Percent Oxalate, C2O4^2-	?	?	?

The answer to some of the question marks have to be one of these, I'm having a hard time with this.

-mMoles of Oxalate, C2O4^2- in trials 1,2, and 3
1. 1.12
2. 1.33
3. 1.18
4. 2.03

The answer the other question marks have to be one of these

-% Oxalate, C2O4^2- in trials 1,2 and 3
1. 48.8
2.48.0
3.56.6
4. 38.6

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