2 Atmosphere, Air, and Gases
2.2 What Makes a Gas... different?
2.3 Our Atmosphere
2.5 Gas Laws
2.6 Partial Pressure
2.7 Reaction Stoichiometry and Gases
2.8 Air Pressure and Elevation
2.11 Al Kane
2.12 Density of a Gas
2.13 STP and more
2.42 Learning Outcomes
❮ previous chapter next chapter ❯
external links
Pretty lame title there when the actual title is "The 10 Alkanes YOU should KNOW". But you had to click on it, didn't you? It was truly clickbait. So now you need to embrace the first 10 alkanes which is a fancy name for a simple saturated hydrocarbon. Here is the general formula for all alkanes:
CnH2n+2
So that is really pretty easy formula-wise. Now lets attach names. In organic you name pretty much everything in a very systematic way. The base or stem name is based on the number of carbons and the alkanes are the most basic of all. They will all end with the suffix -ane and will start with a stem that maps to the number of carbons. Just memorized it because it will serve you well in both chemistry and life. Check out the table below. The boiling points are also there as a reference because that is the kind of guy I am.
HEY! The first 4 of these are GASES at room temperature. This chapter is on gases. Coincidence? I think not.
name | formula | state (25°C) | BP (°C) |
---|---|---|---|
methane | CH4 | gas | –162 |
ethane | C2H6 | gas | –89 |
propane | C3H8 | gas | –42 |
butane | C4H10 | gas | 0 |
pentane | C5H12 | liquid | 36 |
hexane | C6H14 | liquid | 69 |
heptane | C7H16 | liquid | 98 |
octane | C8H18 | liquid | 126 |
nonane | C9H20 | liquid | 151 |
decane | C10H22 | liquid | 174 |