A solution of 25.00 mL solution of 0.2500 M HBr is titrated with a standardized 0.1242 M solution of NaOH at 25°C. a) What is the pH of the HBr solution before NaOH is added? b) How many mililiters of NaOH are required to reach the equivalence point? Write balanced chemical equation of reaction and full calculation. c) What is the pH of solution at 1.0 mL before the equivalence point? d) A 20 mL solution of unknown concentration of H2SO4 was titrated with the same solution of NaOH (c=0.1242 M). Write balance chemical equation of neutralization and calculate the unknown concentration of H2SO4 if the equivalence point was reached when 37 mL of NaOH were added.

A solution of 25.00 mL solution of 0.2500 M HBr is titrated with a standardized 0.1242 M solution of NaOH at 25°C. a) What is the pH of the HBr solution before NaOH is added? b) How many mililiters of NaOH are required to reach the equivalence point? Write balanced chemical equation of reaction and full calculation. c) What is the pH of solution at 1.0 mL before the equivalence point? d) A 20 mL solution of unknown concentration of H2SO4 was titrated with the same solution of NaOH (c=0.1242 M). Write balance chemical equation of neutralization and calculate the unknown concentration of H2SO4 if the equivalence point was reached when 37 mL of NaOH were added.

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 47QAP: A 0.4000 M solution of nitric acid is used to titrate 50.00 mL of 0.237 M barium hydroxide. (Assume...

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A 0.4000 M solution of nitric acid is used to titrate 50.00 mL of 0.237 M barium hydroxide. (Assume that volumes are additive.) (a) Write a balanced net ionic equation for the reaction that takes place during titration. (b) What are the species present at the equivalence point? (c) What volume of nitric acid is required to reach the equivalence point? (d) What is the pH of the solution before any HNO3 is added? (e) What is the pH of the solution halfway to the equivalence point? (f) What is the pH of the solution at the equivalence point?
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