Thursday, 6 August 2015

CLASS NOTE : ORGANIC CHEMISTRY TINZ

                    ORGANIC CHEMISTRY (STC212).
  On Tuesday (4/8/15),we had organic chemistry at 7pm and it started with the submission of the assignment which he gave us last week to the course rep. Here is a brief summary of last week work:
 - HYDROCARBONS:They are a mixture of hydrogen and carbon molecules bonded together. They are the essential building blocks of petroleum products and amino-acids They are divided into the following:
* Aliphatic- They are straight line shaped hydrocarbons.
* Aromatic- They are cyclic or circular shaped hydrocarbons.
    aliphatic hydrocarbons are sub-divided into the following family/groups:
1. Alkane: e.g. Methane, Ethane etc.
2. Alkene: e.g. Ethene, Property etc.
3. Alkyne: e.g.  Propyne, butane etc.
 
*Alkane: This is the group with the general formula Cn02n^+2.The first member is Methane and they are also called PARAFFIN.

- Isomerism: is defined as a phenomenon where an organic compound has the same molecular formula but different structural formulas.
 

This week we talked about homologous series and hybridization.
 Characteristics of homologous series are:
1. They must have a general formula.
2. Successive  members must differ with CH2.
3. The first 4 have similar properties while others differ ad they move down.

-Homologous series: This is the mixing of orbitals. We have both the K, L notation and the s,p, d,f notation.
 Types of SPDF notation are SP, SP2 & SP3.

1 comment: