I. Expressions of Concentration 1. Calculate the sodium content, in terms of mEq, of 1 g of ampicillin sodium (C6H18N3NaO4S). 2. A pharmacist dissolves the contents of eight (8) pcs of Clindamycin 250 mg capsules, into a sufficient amount of astringent to prepare 120mL of solution. What is the percentage strength (w/v) of clindamycin in the prescription? 3. How many milliliters of a solute should be used to prepare 1 pint of a 15% (v/v) lotion?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter4: Calculations Used In Analytical Chemistry

Section: Chapter Questions

Problem 4.24QAP

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Question

I. Expressions of Concentration
1. Calculate the sodium content, in terms of mEq, of 1 g of ampicillin sodium (C6H18N3NaO4S).
2. A pharmacist dissolves the contents of eight (8) pcs of Clindamycin 250 mg capsules, into a sufficient
amount of astringent to prepare 120mL of solution. What is the percentage strength (w/v) of clindamycin
in the prescription?
3. How many milliliters of a solute should be used to prepare 1 pint of a 15% (v/v) lotion?
4. What is the molarity of a solution that is prepared by dissolving 10g Potassium chloride in enough water to
make 500mL of solution?
5. Express in percentage the fluoride concentration in drinking water given in 0.6 ppm.

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