1. Indicate the effect of each of the following procedural mistakes on the repor
ID: 1035049 • Letter: 1
Question
1. Indicate the effect of each of the following procedural mistakes on the reported concentration of the solution. Is the reported concentration too high, too low, or unaffected? a. The buret was not rinsed with deionized water before being washed with MnO ou- (aq) tion before being filled for the titration h. The end point was execed by abour thre dioyps of tirn. c. A few drops of Mno, solution dribbled on the outside of the buret during filling and fell into the Erlenmeyer. A couple of air bubbles stuck to the sides of the buret. d.Explanation / Answer
1)
a) The buret was not rinsed with deionized water before beingwashed with permanganate solution before being filled foe the titration.too low
b) The end point waas exceeded by about three drops of titrant. too high
c) A few drops of permanganate solution dribbled on the outside of the buret during filling and fell into the Erlemmeyer. too high
d) Acouple of air bubbles stuck to the sides of the buret. too high.
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