The local anaesthetic lidocaine is required by the British Pharmacopoeia to contain not less than99.0% and not more than 101.0% of C14H22N2O, calculated with reference to the anhydroussubstance.0.2093 g of a lidocaine sample was dissolved in anhydrous acetic acid and titrated with 0.1025 Mperchloric acid. 8.53 mL was required. Another sample of the lidocaine from the same batch wasfound to contain 0.78% water. Does the sample meet the BP requirements?

The local anaesthetic lidocaine is required by the British Pharmacopoeia to contain not less than99.0% and not more than 101.0% of C14H22N2O, calculated with reference to the anhydroussubstance.0.2093 g of a lidocaine sample was dissolved in anhydrous acetic acid and titrated with 0.1025 Mperchloric acid. 8.53 mL was required. Another sample of the lidocaine from the same batch wasfound to contain 0.78% water. Does the sample meet the BP requirements?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter13: Titrations In Analytical Chemistry

Section: Chapter Questions

Problem 13.5QAP

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