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September 5, 2015

Homework Help: Chemistry

Posted by Megan on Thursday, May 6, 2010 at 2:22pm.

I really don't know how to approach this problem and I really need help.

Using the average molarity of your initial acetic acid solutions, the initial volumes, and the volume of NaOH added to reach the equivalence point, calculate the [C2H3O2-] concentration at the equivalence point.

# of Trials Initial V(HC2H3O2) Vol(NaOH) pH(equiv. Pt.) [OH-] C2H3O2-](eq. Pt.)
Trial 1: 31.1 21.8 7.27 1.86E-007
Trial 2: 30.1 21.7 7.10 1.26E-007
Trial 3: 29.9 24.7 7.13 1.35E-007

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