The lab states that it is very important to thoroughly rinse the buret with the titrant before beginning the experiment. If there was residual water (not tritrant) left in the buret prior to filling the buret, how would the following be affected?

Question

anonymous · Answer

Following meaning: precision, accuracy, and molar mass of unknown

anonymous · Answer

If there was still water in the buret It would cause you to thing you added more titrant than you actually did. So this would cause your molar mass to be smaller.

anonymous · Answer

Your precision is determined by st dev so it would be tossed off because on the next titration there would be zero water left. this would cause the st dev to increase.

anonymous · Answer

and your accuracy would get thrown off because when you compile your trials you could possibly have an outlier. 

How does that sound?

anonymous · Answer

That sounds right so that would mean your accuracy would be better right?

anonymous · Answer

worse

anonymous · Answer

Alright do you know exactly how you would find the initial volume of a buret?

anonymous · Answer

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