Jump to content
Sign in to follow this  

Help on solubility

Recommended Posts



C8H18 is octane and so is non-polar

H2O is polar, because of the shape of the molecule and hydrogen bonding

CH4 is methane and so is non-polar


Hexane itself is non-polar. Remember, for solubility, we use the rule 'like dissolves like'. So, octane and methane are soluble in hexane, whereas water isn't.


Hope this helped :)

  • Like 5

Share this post

Link to post
Share on other sites

Hexane, methane and octane are members of the alkane homologous series. The alkanes are non-polar molecules. Non-polar substances are soluble in non-polar solvents and polar substances are soluble in polar solvents.

Hence the phrase 'like dissolves like'.

Methane and octane are both soluble in hexane as they are all non-polar substances.

Water is a polar solvent and will dissolve polar substances such as ethanol.

  • Like 1

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  


Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.