Find the pH during the titration of 20.00 mLof 0.1000 M

Chapter 20, Problem 42P

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QUESTION:

Problem 42P

Find the pH during the titration of 20.00 mLof 0.1000 M triethylamine. (CH3CH2)3N (Kb = 5.2×10–4), with 0.1000 M HCl solution after the following additions of titrant:

(a) 0 mL

(b) 10.00 mL

(c) 15.00 mL

(d) 19.00 mL

(e) 19.95 mL

(f) 20.00 mL

(g) 20.05 mL

(h) 25.00 mL

Questions & Answers

QUESTION:

Problem 42P

Find the pH during the titration of 20.00 mLof 0.1000 M triethylamine. (CH3CH2)3N (Kb = 5.2×10–4), with 0.1000 M HCl solution after the following additions of titrant:

(a) 0 mL

(b) 10.00 mL

(c) 15.00 mL

(d) 19.00 mL

(e) 19.95 mL

(f) 20.00 mL

(g) 20.05 mL

(h) 25.00 mL

ANSWER:

Step 1 of 8

(a)

In the question, the weak base is titrated with strong acid. Since no acid is added the pH will be of only triethylamine.

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