CHM 245 SIMPLE DISTILLATION PRELAB

NAME:__________________________________________

I. In the simple distillation lab write-up, according to the "handout". which one physical property do we measure to confirm the identity and assess the purity of distilled water?
 
 
 
 
 
 
 

II. Give at least two reasons why temperature measurement is not a reliable means of assessing purity during a distillation.
 
 
 
 
 
 
 
 
 

III What heat source will we use with a round-bottom flask?
 
 
 
 
 

IV  Why must "standard taper" glassware be greased?
 
 
 
 
 
 
 

V.  Which would read the higher temperature, a thermometer in the stillpot or a thermometer at the stillhead..