Given that the titration of 20.0 mL of 0.200 M HNO3 with 0.100 M NaOH occurs via the following reaction: HNO3 + NaOH → Na* + NO3 + H₂O Find the pH at the equivalence point. (Show all your working.) Comment and explain the pH found in your answer Phenolphthalein, a colourless weak acid (K₁=6.31 x 10-¹0) which dissociates in water forming pink anions is widely considered a suitable indicator for this titration. Along with a suitable calculation, find the working/useful range of this indicator to explain its use.

Given that the titration of 20.0 mL of 0.200 M HNO3 with 0.100 M NaOH occurs via the following reaction: HNO3 + NaOH → Na* + NO3 + H₂O Find the pH at the equivalence point. (Show all your working.) Comment and explain the pH found in your answer Phenolphthalein, a colourless weak acid (K₁=6.31 x 10-¹0) which dissociates in water forming pink anions is widely considered a suitable indicator for this titration. Along with a suitable calculation, find the working/useful range of this indicator to explain its use.

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter16: Reactions Between Acids And Bases

Section: Chapter Questions

Problem 16.64QE

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