[listeningintently]

Vinegar is a solution containing ethanoic acid dissolved in water. If 100mL of vinegar contains 4 grams of ethanoic acid, how many moles is this?

Thanks in advance, all help is really appreciated 

[cliverlong]

What attempt have you made at answering this question?

Pleas read and act upon forum rules

http://www.chemicalforums.com/index.php?topic=9037.0

What do you know about moles?

Thank you in advance.

[listeningintently]

I know how to figure out the relative formula mass of ethanoic acid but since I have never done a question in this particular format I am lost as to how I link the other parts of the question together.
and yes, of course I have attempted this question, I posted it because I tried to do it and ended up failing miserably...

[ARGOS++]

Dear listeningintently;

Spend us a view to your work yet, and we will help you to do the next step.

For “Mole” you may also read:   "Mole (unit)”
(Otherwise search for it on the Forum.)

Good Luck!
                    ARGOS⁺⁺

[sjb]

If you know how to work out the relative molecular weight of ethanoic acid, and you have the mass of ethanoic acid, you have the number of moles of ethanoic acid, don't you? Unless you've missed something in typing the question out, I don't quite see why you need the volume of vinegar...