1. Consider the titration of 25.00 mL of 0.150 M acetic acid (HC2H3O2, Ka = 1.8 × 10−5 ) (aq) with 0.175 M NaOH(aq). What is the pH of the titration solution . . . a. . . . before any NaOH is added? b. . . . after 10.00 mL of NaOH is added? c. . . . at the equivalence point? Also, what volume of NaOH is required to reach this? d. For this titration, which is the best indicator to use: phenolphthalein, bromothymol blue, or methyl orange? Justify your answer
1. Consider the titration of 25.00 mL of 0.150 M acetic acid (HC2H3O2, Ka = 1.8 × 10−5 ) (aq) with 0.175 M NaOH(aq). What is the pH of the titration solution . . . a. . . . before any NaOH is added? b. . . . after 10.00 mL of NaOH is added? c. . . . at the equivalence point? Also, what volume of NaOH is required to reach this? d. For this titration, which is the best indicator to use: phenolphthalein, bromothymol blue, or methyl orange? Justify your answer
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter14: Acid-base Equilibria
Section: Chapter Questions
Problem 102E: A 5.36-g sample of NH4Cl was added to 25.0 mL of 1.00 M NaOH and the resulting solution diluted to...
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1. Consider the titration of 25.00 mL of 0.150 M acetic acid (HC2H3O2, Ka = 1.8 × 10−5 ) (aq) with 0.175 M NaOH(aq). What is the pH of the titration solution . . . a. . . . before any NaOH is added?
b. . . . after 10.00 mL of NaOH is added?
c. . . . at the equivalence point? Also, what volume of NaOH is required to reach this?
d. For this titration, which is the best indicator to use: phenolphthalein, bromothymol blue, or methyl orange? Justify your answer
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