How do I find the number of moles of acetic acid?

Question

I made a graph using my titration. Using my results I have to calculate the number of moles "initially" present. Then I have to calculate the concentraion of acetic acid in the original acetic acid solution that I used.

Answer 1

You have provided very few specifics on your actual experiment so it will be difficult to help you very much other than to give you the basic idea.

You need to write out the chemical reaction which is taking place…a neutralization reaction between the acetic acid and the base you are titrating it with. Find the number of moles of base needed to neutralize 1 mole of the acid from the chemical reaction. Compare this figure with the number of moles of base needed in your experiment to reach the end point (should be obvious from the graph). How many times more/less of the base did you use in your experiment? This same multiple can be used to find the number of moles of base in your initial solution.

Remember,
When finding concentration,
Molarity = moles of solute / Liters of solution
Molality = moles of solute / kilograms of solvent
You can also re-arrange these equations to solve for unknown quantities when working backwards.

Answer 2

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