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A 25.0 mL sample of a 0.3400 M solution of aqueous trimethylamine is titrated with a...

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Chemistry

A 25.0 mL sample of a 0.3400 M solution of aqueoustrimethylamine is titrated with a 0.4250 M solution ofHCl. Calculate the pH of the solution after 10.0, 20.0, and 30.0 mLof acid have been added; pKb of (CH3)3N = 4.19 at 25°C.

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3.8 Ratings (386 Votes)
use pKb log Kb 419 log Kb Kb 6457105 1when 100 mL of HNO3 is added Given MHNO3 0425 M VHNO3 10 mL MCH33N 04 M VCH33N 25 mL molHNO3 MHNO3 VHNO3 molHNO3 0425 M 10 mL 425 mmol molCH33N MCH33N VCH33N molCH33N 04 M 25 mL 10 mmol We have molHNO3 425 mmol molCH33N 10 mmol 425 mmol of both will react excess CH33N    See Answer
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