Volume/Volume %, manipulating units

[susan__t]

I am trying to find % acetic acid by volume in vinegar.

I have 8*10-4 mol/L of acetic acid in vinegar and 8*10-5 of acetic acid in the dilute sample of vinegar and water.

I know that the volume/volume % is equal to the amounts of A divided by the total amounts of A and B. BUT that they also should be in mL, considering the density (the assumed density) of water, vinegar and acetic acid is 1.00g/mL.

So I'm having trouble with finding out how to convert the mol/L into just mL. Also having trouble figuring out what A and A+B are. I am assuming A is the volume of acetic acid in vinegar and A+B is the volume of acetic acid in the dilute sample?

Thanks

 

[chemisttree]

mol/L can be converted into grams/L which can be converted into grams/100mL.