November 27, 2015

Homework Help: science-chem- theory questions

Posted by sarah on Tuesday, March 22, 2011 at 5:51pm.

please, help me.. i think i know the answers, but i just want to make sure! i'd love your feed back :)

1) an air bubble is trapped in the tip of a buret before a titration. during the titration, the bubble is passed from the buret tip. will the reported volume of titrant used be too high,too low, or unchanged as a result?

--> i think it will be too high because you're including the volume of the bubble (gas) too.

2) in the determination of H2O2 by titration with permanganate, the end point was overshot (too much titrant to analyte)what effect would this have on the reported amount of H2O2? Explain.

--> this one i'm not actually sure how to go about this. i think that the reported amount of H2O2 would be greater than it actually is, but i'm not sure.

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