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1 - oil flask; 2 - thermometer; 3 - refrigerator; 4 -
allong; 5 - flask receiver.

fractions and calculate the density for each fraction.
Convinced that the density of fractions grows with the
increase in the temperature of their boiling.

Volumetric and mass exits are calculated according to
the formulas:

Vfraction
   100 %
V
oil
m
  fraction  100 %
m