Part 1. Standardization of the KMN0, Solution Experimental Data Mass of weighing funnel and Na,C,O, h.5366g Mass of weighing funnel Titrations Titration #1 Titration #2 Volume of Na,C,0, pipetted 25.00mL 22.3mL Initial burette reading 21.1 mL 22.3 mL Final burette reading 50.1mL 36.8mL Zone average molarity of KMnO, 0,01366 (value provided by TA, on the board) Reaction 2 MnO, + 5 C,0,- + 16 H* → 2 Mn²* + 10 CO, + 8 H,0 Calculated Values Mass of Na,C,O, 03131. (Give to Lab TA) Molarity of Na,C,0, Titrations Titration #1 Titration #2 Volume of KMNO, solution (Give to Lab TA) 2పిం 1.45 mL Molarity of KMNO, Average molarity of KMNO, % deviation of your molarity of KMNO, from zone average

Fundamentals Of Analytical Chemistry
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Chapter17: Complexation And Precipitation Reactions And Titrations
Section: Chapter Questions
Problem 17.35QAP
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I need help calculating the remaining values in the first picture. The molarities. Please calculate the moles of sodium oxalate by using the n = c x v equation for these values. Make sure the unrounded values are 6 sig figs.
Part 1. Standardization of the KMN0, Solution
Experimental Data
Mass of weighing funnel and Na,C,O, 2.5366g
Mass of weighing funnel
2.2235g
Titrations
Titration #1
Titration #2
Volume of Na,C,0, pipetted
25.00mL
22.3mL
Initial burette reading
21.1 mL
22.3 mL
Final burette reading
50.1mL
36.8mL
Zone average molarity of KMnO,
0,01366 u
(value provided by TA,
on the board)
Reaction
2 MnO, + 5 C,0,² + 16 H* → 2 Mn²* + 10 CO, + 8 H,0
Calculated Values
Mass of Na,C,O4
03131.
(Give to Lab TA)
Molarity of Na,C,O,
Titrations
Titration #1
Titration #2
Volume of KMNO, solution
(Give to Lab TA)
28.0mL
1.45ML
Molarity of KMNO,
Average molarity of KMNO,
% deviation of your molarity of
KMNO, from zone average
Transcribed Image Text:Part 1. Standardization of the KMN0, Solution Experimental Data Mass of weighing funnel and Na,C,O, 2.5366g Mass of weighing funnel 2.2235g Titrations Titration #1 Titration #2 Volume of Na,C,0, pipetted 25.00mL 22.3mL Initial burette reading 21.1 mL 22.3 mL Final burette reading 50.1mL 36.8mL Zone average molarity of KMnO, 0,01366 u (value provided by TA, on the board) Reaction 2 MnO, + 5 C,0,² + 16 H* → 2 Mn²* + 10 CO, + 8 H,0 Calculated Values Mass of Na,C,O4 03131. (Give to Lab TA) Molarity of Na,C,O, Titrations Titration #1 Titration #2 Volume of KMNO, solution (Give to Lab TA) 28.0mL 1.45ML Molarity of KMNO, Average molarity of KMNO, % deviation of your molarity of KMNO, from zone average
TITRATION DATA
In the next part of the experiment, you used the standard solution of
sodium oxalate to standardize a solution of potassium permanganate,
KMnO4. The potassium permanganate was the titrant. Please complete
the table below.
Trial 1
Trial 2
Volume of Na2C204 solution pipetted (mL)
25.00
25.00
Initial burette reading (mL)
21.10
21.10
Final burette reading (mL)
50.00
36.80
Titre (mL)
28.90
15.70
MOLARITY OF POTASSIUM PERMANGANATE SOLUTION
You now have all of the information you need to calculate the molarity of
your potassium permanganate solution.
Trial 1
Trial 2
Molarity of KMnO4 solution (M)
3
Average molarity of KMNO4 solution (M)
unrounded
Average molarity of KMNO4 solution (M)
rounded
Transcribed Image Text:TITRATION DATA In the next part of the experiment, you used the standard solution of sodium oxalate to standardize a solution of potassium permanganate, KMnO4. The potassium permanganate was the titrant. Please complete the table below. Trial 1 Trial 2 Volume of Na2C204 solution pipetted (mL) 25.00 25.00 Initial burette reading (mL) 21.10 21.10 Final burette reading (mL) 50.00 36.80 Titre (mL) 28.90 15.70 MOLARITY OF POTASSIUM PERMANGANATE SOLUTION You now have all of the information you need to calculate the molarity of your potassium permanganate solution. Trial 1 Trial 2 Molarity of KMnO4 solution (M) 3 Average molarity of KMNO4 solution (M) unrounded Average molarity of KMNO4 solution (M) rounded
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