I would like for the equivalence points to fall at between 20mL and 40mL.  Therefore a rough trial will be run using between the window of 0.20-0.25g of the solid and titrating quickly until a sharp pH jump occurs, indicating the second equivalence point. If a rough trial of 0.2190g of unknown acid requires 41.54mL of NaOH to reach the second equivalence point, what mass of acid should be used to get the second equivalence point to fall at 40.00mL?

Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter14: Equilibria In Acid-base Solutions
Section: Chapter Questions
Problem 48QAP: A 0.2481 M solution of KOH is used to titrate 30.00 mL of 0.269 M hydrobromic acid. Assume that...
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For a super special lab titration that I love to do: I would like for the equivalence points to fall at between 20mL and 40mL.  Therefore a rough trial will be run using between the window of 0.20-0.25g of the solid and titrating quickly until a sharp pH jump occurs, indicating the second equivalence point.

If a rough trial of 0.2190g of unknown acid
requires 41.54mL of NaOH to reach the second equivalence point, what mass of acid should be used to get the second equivalence point to fall at 40.00mL?

 

Thank you!

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