A lotion contains 18% v/v of glycerin. What is the percentage strength of glycerin in w/v if 5 gallons of this lotion is prepared? Glycerin has a specific gravity of 1.25. Round to the tenth place. Correct Answer: 22.5%
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A lotion contains 18% v/v of glycerin. What is the percentage strength of glycerin in w/v if 5 gallons of this lotion is prepared? Glycerin has a specific gravity of 1.25. Round to the tenth place. Correct Answer: 22.5%
If 450 g of dextrose are dissolved in 750 mL of water with a resultant final volume of 1 liter, what is the percentage strength of dextrose in the solution on a w/w basis? Round your answer to the tenth place. Correct Answer: 37.5%
If fifty glycerin suppositories are made from the following formula, how many milliliters of glycerin, having a specific gravity of 1.25, would be used in the preparation of 126 suppositories?
Glycerin 91 g
Sodium stearate 9 g
Purified water 5 g
Round your answer to the tenth place. Correct Answer: 183.5 mL
A 45-g tube of DESONATE gel contains 0.05% w/w desonide. Calculate the concentration of desonide on an mg/g basis Correct Answer: 0.5 mg/g
A pharmacist receives the following prescription but does not have hydrocortisone powder on hand. However, the pharmacist does have an injection containing 100 mg of hydrocortisone per milliliter of injection. A search of the literature indicates that the injection has a specific gravity of 1.1. Rx Hydrocortisone 1.5% Cold Cream qs 45 g How many milliliters of the hydrocortisone injection would provide the correct amount of hydrocortisone? Round your answer to the tenth place Correct Answer: 6.75 mL
A syrup is prepared by dissolving 700 g of sucrose in sufficient purified water to make 1000 mL of syrup. Syrup has a specific gravity of 1.25. How many milliliters of water would be needed to prepare 2 liters of syrup? Report your answer as a whole number Correct Answer: 1100 mL
Rx Potassium permanganate tablets 200 mg Dispense #80 Sig. Six tablets in enough water to make 1,800 mL. Use as directed. What is the ratio strength (w/v) of the prepared solution? Report your answer as a ratio (X:Y), in the following format (1:20,000) Correct Answer: 1:1500
Rx: Lactic Acid aa
Salicylic Acid 10 %
Flexible Collodion qs ad 15 mL
Sig: Apply one drop to wart twice a day.
Lactic acid is available as a liquid containing 65 g of the acid in 100 g of solution (sp.gr. 1.2). Calculate the quantity of this solution, in milliliters, needed to fill the prescription. Round your answer to the tenth place. Correct Answer: 1.9 mL
If a pharmacist combi
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