N-Hexane/Acetone azetrope identification

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The discussion revolves around identifying the azeotrope of n-Hexane and Acetone in a physical chemistry experiment. The user has performed calculations and data checks but struggles to pinpoint the azeotrope due to discrepancies in data from a partner's work. They highlight potential issues with instrument calibration and data recording that could affect results. The user seeks advice on accurately predicting the azeotrope and proper terminology for discussing it in literature. The conversation emphasizes the importance of consistent methodology and accurate data interpretation in experimental chemistry.
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Homework Statement



I am working on an experiment rite up for a physical chem class regarding the n-Hexane/Acetone azetrope. I have done my calcs, tripple checked both the data and the clacs and everything is as correct as it can be at this point (i can't change figures recorded in the lab notes and just have to work with it as is)

the problem is that none of the lines connect to where i can definitively point out the azeotrope (see image)https://www.dropbox.com/s/v0bqszxdatqcfhg/expt3.jpg...I understand the azetrope would be at the minimum where, theoretically, these plots should over lap.

What would you do in this case?

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The Attempt at a Solution



I suppose it is worth mentioning that this was a 2 man group project, partner did the stuff on the right side in blue so I have no way of really knowing what happened in his lab. All I can say is that for mine portion I was very careful to record temps twice, calibrate the thermocoupler twice for consistency and always used the same instrument when reading the Refractive index. there where 4 instruments in all so if the partner used a combo of them, didnt wait for the sample to cool first, these could all through off the R.I. which is why the round points for Y(hexane)' are off and if he had calibrated the thermo coupler corectly maybe his temps would be a degree or so lower to where they would match mine.

again any advice on how to accuratley predict the azeotrope would be of great help.
Also, how does one correctly discuss an azetrope in literature? Would you say an "the azeotrope occurs at aprox. mole fraction of 0.48 with a boiling point of..."

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