# Chemistry

How much mL of 0.2 M NaOH are needed to titrate vinegar while doing a titration with Phenolphthalein?

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1. Sorry It should be 10.00 ml of vinegar!!!

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2. What is the strength of vinegar you are using?

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3. It is just vinegar that we did in the class. We used about 55 ml of vinegar to titrate.

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4. I can show you how to solve the problem but I have no numbers. However,
mL vin x M vin = mL NaOH x M NaOH
If you substitute mL vinegar and multiply by M vinegar (molarity = mols/L) and divide by M NaOH you can calculate mL NaOH. Most vinegars are about 5% acetic acid and I believe that is % w/v which makes it about 0.833 M.

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