Among its other ingredients, VISINE-A eyedrops contain the active ingredients: 0.025% w/v naphazoline hydrochloride and 0.3% w/v pheniramine maleate and 1:10,000 w/v benzalkonium chloride as a preservative. Calculate (a) the corresponding percent strength of benzalkonium chloride and (b) the quantities of each of the three ingredients in a 15-mL container.

Among its other ingredients, VISINE-A eyedrops contain the active ingredients: 0.025% w/v naphazoline hydrochloride and 0.3% w/v pheniramine maleate and 1:10,000 w/v benzalkonium chloride as a preservative. Calculate (a) the corresponding percent strength of benzalkonium chloride and (b) the quantities of each of the three ingredients in a 15-mL container.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter21: Potentiometry

Section: Chapter Questions

Problem 21.3QAP

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