Please help me. I do not know how to answer these questions: 1. How would these

Question

Please help me. I do not know how to answer these questions:

1. How would these actions affect your calculated value of the molarity of the unknown oxalid acid, (COOH)2?

a. You thought that you had reached the end point of this titration and recorded and recorded the buret reading but the color faded in about 15 sec. ?

b. You used a solution of potasium permanganate which had been stored in a clear bottle on the window sill for several days before you used this solution to determine the concentration of the oxalic acid?

Thank you

Explanation / Answer

(1) You have not reached the end point . You should do it again (2) By keeping in sunlight potassium permagnate changes chemically leading to wrong readings

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