Friday, 16 October 2015

Tuesday, 15 September 2015

Organic Chemistry Reaction Scheme

This image shows the key relationships between the functional groups we learn about in this topic. Can you fill in the arrows with suitable reagents? Do you know the importance of the green terms? Why is NH2 underlined in amines? Why is the H underlined in carboxylic acids?

Thursday, 10 September 2015

Alcohols - Typical Reactions

In this topic, we will do some experiments with primary, secondary and tertiary alcohols. Here are some videos explaining some of the expected observations and how to use them to identify/classify alcohols.

Alcohols - Preparation from Alkenes

There are a few ways to make alcohols:
  • fermentation of sugars
  • synthesis gas
  • hydration of alkenes
We looked at the hydration of 1-butene using dilute sulfuric acid:

Alcohols - Structure

The structure of alcohols tells us a lot about their physical properties and chemical reactions. Last year, the first lesson was about the different isomers of C4H9OH, with the students starting by trying to make (and name) all of the ones that contain the alcohol functional group. Can you name these?

EXTENSION (not covered in Level 2, but worth seeing if you notice something interesting about the 3D structures of 2-butanol):