Discusison Chemistry lab assignment

Question

Rani · Accepted Answer

QUESTIONS RELATED TO DUMAS EXPERIMENT:
1. The three sources of error are:
A. Water droplets left inside the Erlenmeyer flask in the beginning.
B. Water bath is not boiling while flask was put inside it and also after vaporization.
C. Aluminium foil may contain some water droplets.
2. Changes the sources of error will brought in the calculated molar mass:
A. Water droplets left inside the Erlenmeyer flask in the beginning: extra water droplets will enhance the volume of the given unknown liquid and also the mass of condensate liquid left at last will increase as this water droplets will add to it. In this way the overall mass of remaining condensate liquid will increase and hence the molar mass will be higher.
B.

Discusison Chemistry lab assignment

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