describe an experiment with the aid of a diagram to determine the boiling point of a substance
Answers
Answer:
Aim:
To determine the boiling point of organic compounds like Benzene.
Materials Required:
Benzene, Benzaldehyde, the aluminum block, fusion tube, stand with clamp, capillary tube, tripod, thermometer, and kerosene burner
Procedure to determine the boiling point of Benzene:
Take a capillary tube and close its one end by holding the end in the flame and rotate it for 2-3 minutes.
Transfer a few mL of benzene in the fusion tube.
Dip the capillary tube into the liquid in the fusion tube keeping the sealed end up.
Insert the tube in one of the holes of aluminum block and insert the thermometer in the other hole.
Make sure that the liquid is visible in the fusion tube after it is put in the hole.
Place the Aluminium block on the tripod.
Start heating the block with the help of kerosene burner.
Note down the temperature soon as the regular streams of bubbles are seen out of liquid in the fusion tube.
Precautions to be taken during the experiment:
Ensure that the capillary tube is properly sealed.
The seal point of the capillary tube should be well within the liquid.
