Exam 19: Calculations for Compounding

Calculate the amount of pure ethanol needed to prepare 3 fl oz of 60% ethanol solution, using pure ethanol liquid and water: _______________.

Which of the following is not a common example of a base for a solid or semisolid compounded medication?

The inactive material into which an active ingredient is mixed in a solid or semisolid compound is known as the

Calculate the amount of sodium chloride needed to prepare 2.5 L of 0.225% sodium chloride solution, using sodium chloride powder and water: _______________.

A 12% solution of ammonium chloride has a specific gravity of 1.0362. Calculate the mass of 1 L of the solution: _______________. Round to the nearest tenth if necessary.

Glycerin has a specific gravity of 1.25. What is the volume of 85 g of glycerin?

Rubbing alcohol has a specific gravity of 0.877. Calculate the mass of 650 mL of rubbing alcohol: _______________. Round to the nearest tenth if necessary.

Which of the following is the correct recipe for making 50 g of a 2.5% triamcinolone ointment from triamcinolone powder and petroleum jelly?

Calculate the amount of metronidazole powder needed to prepare 60 g of 0.75% metronidazole cream: _______________.

Calculate the amount of hydrocortisone cream needed to prepare 45 g of a 1.5% hydrocortisone cream using 2% hydrocortisone cream and a cream base: _______________.

Calculate the amount of cocoa butter needed to prepare 250 g of 1.5% hydrocortisone suppositories: _______________.

Calculate the amount of water needed to prepare 600 mL of 0.9% sodium chloride solution, using a stock solution of 5% sodium chloride: _______________.

Calculate the amount of lidocaine needed to prepare 50 g of 4% lidocaine cream: _______________.

A 350 mL sample of alcohol has a mass of 298 g. The specific gravity of the alcohol is _______________. Round your answer to four decimal places, if necessary.

Ethylene glycol has a specific gravity of 1.125. The mass of 350 mL of ethylene glycol is _______________. Round to the nearest tenth of a gram.