Some examples of organic compounds that we are familiar with are:
Clothing - polyester
Plastics - polyethylene alcohol
their properties include:
*low melting points
*weak or non-electrolytes
*can form chains or carbon atoms that are linked in a:
- Straight Line (which is not actually straight, but a zig zag line)
- Circular Pattern
- Branched Pattern
*can link with other atoms in
- Single Bonds
- Double Bonds
- Triple Bonds
- Versatility
Alkanes Hydrocarbons
-A hydrocarbon is a compound that contains only hydrogen and carbon. There are different types of hydrocarbons and there re different ways to represent them
-Alkanes are saturated hydrocarbon which have all carbon atoms bonded by single bonds to the structure
-to NAME alkanes: they all end with "-ane"
here is a chart to show the names and molecular formulas of alkanes
To help get the molecular formula follow this formula: CnH2n+2
Branched Hydrocarbons
-Hydrocarbons have "side branches" which are also hydrocarbon chains. These hydrocarbons are called substituted hydrocarbons or branched hydrocarbons
-An Alkyl group is an alkane which has lost one hydrogen atom
-NAMING an alkyl group always end with "-yl"
Here are the RULES you should follow to successfully name branched chain alkanes:
1) Identify the longest, continuous carbon chain, and name it (using the chart above)
2)Identify the branches the come off the main carbon chain
3)number the carbons in the main chain by placing the lowest possible number to the first branch
4)Identify which carbon the branch is located
5)Name the branch
6)When writing it out the branch name comes before the main chain name (ex. methylpentane)
*forming a branched hydrocarbon is when it gets tricky! but have no fear! here is a helpful video to better explain the process since it is very difficult to draw examples on this blog
HELPFUL VIDEO!! warning: may feel super smart after watching
http://www.youtube.com/watch?v=YWA5SfJhWKI
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