CALCULATE 1) How many grams of ointment base must be added to 30grams of 3% ointment to reduce its strength to 1% 2)How many milliliters of 2% solution can be prepared from 100ml of 10% solution? 3) How many grams of each an 8% ointment and 2% ointment must be mixed to prepare 30g of 4% ointment? 4) A pediatric iron supplement drop contains 15mg of iron per 1 mL supplement. Express the concentration in PPM. 5) Sterile NS was mixed with 300mL of a stock solution of Potash of alum to prepare 3L of 1% alum irrigation. Calculate the percentage strength of the stock solution.

CALCULATE 1) How many grams of ointment base must be added to 30grams of 3% ointment to reduce its strength to 1% 2)How many milliliters of 2% solution can be prepared from 100ml of 10% solution? 3) How many grams of each an 8% ointment and 2% ointment must be mixed to prepare 30g of 4% ointment? 4) A pediatric iron supplement drop contains 15mg of iron per 1 mL supplement. Express the concentration in PPM. 5) Sterile NS was mixed with 300mL of a stock solution of Potash of alum to prepare 3L of 1% alum irrigation. Calculate the percentage strength of the stock solution.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter20: Applications Of Oxidation/reduction Titrations

Section: Chapter Questions

Problem 20.6QAP

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