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Freundlich Isotherm F336 Coursework HELP!

Hi,
I have my deadline for the first section on my course due very soon but my problem is I don't actually know what my Title is (in the form of a question).

I was at an open day when my class chose their titles which left me with a very limited choice so my teacher told me to do the Freundlich isotherm? That's all he said. I've done a great deal of research into it but i don't actually know what I'm investigating!

anyone got any ideas or have done similar a coursework title? any help would be appreciated,
Thanks

If it helps the OCR exam board says "Shake different concentrations of ethanoic acid with activated charcoal, filter and find the concentration of acid remaining in solution by titration with sodium hydroxide solution. Use data to calculate the Freundlich constants Extend to other acids such as methanoic, propanoic, ethanedioic acids." But I Don't actually know what this is investigating and how i could format it into a question.