Sodium Explodes in Water Why Doesnt Salt!

2-methyl-2-chloropropane is produced by the reaction of concentrated hydrochloric acid with 2-methyl-propan-2-ol. The product is then purified by solvent extraction and simple distillation.

In this video I look at the use of the two main reducing agents employed in organic chemistry. These are lithium aluminium hydride (lithal) and sodium borohydride. I outline the mechanism (nucleophilic addition) in which hydride ions react with C=O groups to form alcohols via alkoxide intermediates. I compare the reactivities of the two reducing agents and discuss the explosive risks associated with using lithium aluminium hydride with protic solvents such as water or methanol. A practical setup, that could be used to reduce aldehydes and ketone with lithal, is presented at the end. It is one in a series of short videos looking at the main organic practical techniques: heat & distill; reflux distillation; washing and drying in solvent extraction; recrystallisation and melting point determination; and others

Coagulation is the process by which blood forms clots

In this video lesson, Mr. Scullion demonstrates a reacting mass problem involving sulfur. Try the problem out on your own prior to finding out the solution.

Fractional distillation is used to separate a mixture of two or more fluids that at two different boiling points. Heating the mixtures and partially condensating the vapors are both parts of this process.