In 1865, The Lancet, the medical journal, called upon any person, criminal or not, to prove that waving a chloroform-drenched handkerchief was enough to knock someone out. To date, nobody has stepped forward!



While the right...

It explains the vapour pressure of liquids with the help of Raoult's law and defines Dalton' law of partial pressures.

This is a video about the chemical separation process of distillation and fractional distillation, which separates liquids based on their boiling points. The video uses a simulator to demonstrate the process and explains how it is used...