Anilinium chloride (C6H5NH3Cl) is a weak acid (Ka = 2.4 x 10-5). A sample of anilinium chloride weighing 0.648 g is placed in 50.0 mL of water. Your goal is to titrate the sample with 0.185 M NaOH at 25 °C a) (Circle one) NaOH is a strong or weak base? Strong Weak b) Provide the following: moles of anilinium chloride: moles of NaOH to reach equivalence:
Anilinium chloride (C6H5NH3Cl) is a weak acid (Ka = 2.4 x 10-5). A sample of anilinium chloride weighing 0.648 g is placed in 50.0 mL of water. Your goal is to titrate the sample with 0.185 M NaOH at 25 °C a) (Circle one) NaOH is a strong or weak base? Strong Weak b) Provide the following: moles of anilinium chloride: moles of NaOH to reach equivalence:
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter16: Principles Of Chemical Reactivity: The Chemistry Of Acids And Bases
Section: Chapter Questions
Problem 118IL: Amino acids are an important group of compounds. At low pH, both the carboxylic acid group (CO2H)...
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Transcribed Image Text:Anilinium chloride (C6H5NH³Cl) is a weak acid (Ka = 2.4 x 10-5). A sample of anilinium chloride weighing 0.648 g is placed
in 50.0 mL of water. Your goal is to titrate the sample with 0.185 M NaOH at 25 °C
a) (Circle one) NaOH is a strong or weak base? Strong
Weak
b) Provide the following:
moles of anilinium chloride:
moles of NaOH to reach equivalence:
volume of 0.185 M NaOH to reach equivalence (L):
concentration of anilinium chloride solution (M):
pKa (anilinium chloride):
Kw:
Kb of the conjugate base:
c) What is the pH of the anilinium chloride solution before any NaOH has been added?
d) What is the pH after adding one small squirt (1.00 mL) of NaOH to the solution?
Transcribed Image Text:e) What is the pH at the half equivalence point of the titration?
f) What is the pH at the equivalence point?
g) What is the pH after 30.0 mL of 0.185 M NaOH have been added?
h) Sketch a rough titration curve using the information gathered in parts a-g, above. Use actual values as calculated above.
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