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Postby suniique » Sat Apr 09, 2016 8:47 am

To determine the mass percentage of acetic acid in a sample of vinegar, 50 ml of vinegar
(d = 1.013 g/ml) is titrated with a standardized NaOH solution. Equivalence point is reached when 60 ml
of 0.92 M NaOH is added to the vinegar. The acetic acid in the vinegar reacts with the NaOH according
to the following reaction:
CH3CO2H (aq) + NaOH (aq) → NaCH3CO2 (aq) + H2O (l)
a) What is the mass percentage of the acetic acid in the vinegar?
b) Describe how you would dilute a 0.15 M acetic acid solution if you need 125 ml of a 0.01 M
acetic acid solution for an experiment.

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Re: titration

Postby amyc » Thu Apr 14, 2016 9:57 am

Hi - The Experts here in the forums are not able to help with homework questions. If you have specific questions about a hands-on science project you are doing, please post your question in the forum appropriate for your grade and area of science.

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