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20 Questions

Define Eutectic Point

list 3 applications that utilize melting point measurements

explain why it is important to calibrate the thermometer and melting point apparatus

explain why a small molecule like sodium chloride melts at 801 degrees celsius, but glucose melts at 146 degrees celsius

how can you tell if a compound is pure from its melting point

explain the oiling out phenomenon during recrystallization. Why does it happen

what is petroleum ether

is there any danger in using two boiling chips?

why is it sometimes necessary to filter the solution during recrystallization

is boiling the recrystallization solution for a long time necessary? Does it affect the outcome?

define boiling point

explain why the side arm of the condenser should be placed deep within the receiving vial

explain why your boiling points are higher than in the literature

single most important variable thaT contributes to effective distillation

explain why during distillation the first few distillates are cloudy

calculate the volume of 3M HCL that is needed ti neutralize 2 mL of 0.5 M NaOH

explain why using an excess if drying agent is not recommended

if the density of the organic layer is not known, how can you tell which layer is water and which layer is organic

what does the cloudiness indicate, how can you remove it?

list 3 criteria a good solvent should have

Test your knowledge about the eutectic point, applications of melting point measurements, importance of calibration, variations in melting points of different compounds, and identifying purity from melting points. Explore the phenomenon of oiling out during recrystallization.

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