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A.) what is the normality of Na2C2O4 solution if you use 1.14g of Na2C2O4 to prepare 100.00 mL of solution?

B.) what is the normality of the stock KMnO4 solution if it took 31.20 mL of the KMnO4 solution to titrate a 20.00 mL sample of the oxalate solution prepared in part a?

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Related questions

Suppose you have 0.3562g of Na2C2O4 and is dissolved in 250 mL volumetric flask. If 10 mL of this solution requires 48.36 mL of KMnO4 solution for titration, what is the molarity of the permanganate solution. Step by step solution and will rate 5 STARS! please please help.

Part A: There is unknown solution whose information is:
-Mass: 0.7638 grams
-Initial Buret reading: 0.00 mL
-Final buret reading: 26.05 mL
-Vol of the KMnO4: 43.75 mL
- The unknown was mixed with 100mL deionized Water and 25 Ml of 3 MH2SO4(that contains some manganese (II) sulfate). then the mixedsolution was put on a hot plate and then some prepared permanganatesolution and titrated the oxalate wit it.
1. Calculated mass of Na2C2O4 in the unknown?
2. Percentage of Na2C2O4 in the unknown?

Part B.
In this lab the oxidizing agent is potassium Permanganate ion. thereducing agent is sodium oxalate. So during the titration if thesolution turns to a muddy brown int indicates the formation ofMNO2. Explain how the formation of the MnO2 affects the results ofthe the titration.

4) (6 points) A 0.1278 g sample of primary standard Na2C2O4 is diluted to 100.00 mL with water and made slightly acidic before titration with a potassium permanganate solution of unknown concentration. The titration required exactly 33.31 mL of the potassium permanganate (KMnO4) solution.

a. Write and balance the Redox reaction in acidic solution.

b. Identify the oxidizing agent and the reducing agent on the left side of the reaction.

c. Calculate ΔEº=EºOx – EºRed . Is the reaction thermodynamically favored?

d. Calculate the equilibrium constant of the reaction.

e. Calculate the concentration of permanganate solution. MnO4- + H2C2O4 Mn2+ + CO2 Na2C2O4: 133.999 g/mol E° = 0.49 V for 2CO2(g) + 2H+(aq) + 2e− → H2C2O4(aq)

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