Please solve point 5

Titration of the KMnO4 solution with Na2C2O4 solution 1. Accurately weigh 0.15 g of dry Na2C2O4, place in a 100 mL volumetric flask and make up to volume with water distilled. 2. From the previous solution, take three aliquots of 5 mL, to each aliquot add 5 mL of H2SO4 10% V/V (10ml H2SO4 + 90 ml of water) and heat to about 75C. 3. Titrate each Na2C2O4 aliquot with the KMnO4 solution until a pale pink color persists for 30 seconds. Verify that at the end of the titration, the temperature of the solution is not less than 60 C, otherwise the process is repeated. 4. Perform the test in triplicate and average the potassium permanganate expenditure.

5. Report the average concentration value

For aliquot 1, =1.1 ml of KMnO4 was used. For aliquot 2, =1.0 ml of KMnO4 was used. For aliquot 1, =1.1 ml of KMnO4 was used.