How Is the Volume of Ethanoic Acid Determined from the Titration Graph?

AI Thread Summary
To determine the volume of ethanoic acid from the titration graph, the concentration is calculated based on the volume at which the temperature peaks. While the initial assumption was 30 mL at maximum temperature, the correct volume is identified as being between 25.5 mL and 26.5 mL. This range is derived from observing the graph's curve, where fluctuations after the peak indicate a return to room temperature rather than significant changes in reaction. Drawing two straight lines on the plot can help visualize the intersection point, providing a more accurate reading. Understanding these details is crucial for accurate titration results.
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Homework Statement


upload_2019-1-12_11-18-42.png

the question asks for the concentration of ethanoic acid, therefore I need to find out the volume of ethanoic acid used during the titrations. I thought it would be 30mL because that's when the temperature reaches maximum. But the answer says that the volume should be in the range of 25.5-26.5, and I don't know how it is read from the curve. Thanks in advance!

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The point at 25 is very close to the maximum already. The variations afterwards are probably just fluctuations or the mixture slowly returning to room temperature. You can draw two straight lines in the plot and see where they meet.
 
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