A 5000-ML Solution of 0

question 65

Multiple Choice

A 50.00-mL solution of 0.0426 M trimethylamine (K_b = 6.5 × 10^-5) is titrated with a 0.0257 M solution of hydrochloric acid as the titrant.What is the pH of the base solution after 22.31 mL of titrant have been added? (K_w = 1.00 × 10^-14)

• A) 11.21
• B) 10.23
• C) 3.77
• D) 4.19
• E) 12.63

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