Exam 19: Calculations for Compounding

A 10% solution of acetic acid has a specific gravity of 1.014. Calculate the volume of 250 g of acetic acid: _______________. Round to the nearest tenth.

If 500 mL of a solution has a mass of 15 oz, calculate the specific gravity of the solution: _______________. Round your answer to four decimal places, if necessary.

A liquid that is used to dissolve other ingredients is called a diluent or

Calculate the amount of 5% zinc oxide ointment needed to prepare 50 g of 15% zinc oxide ointment, using 30% and 5% zinc oxide stock products: _______________.

"Lidocaine 2 g, water qsad 100 mL" is the recipe for making 100 mL of a _____ lidocaine solution.

How much Vaseline is needed to prepare 65 g of 4% zinc oxide ointment?

Calculate the amount of water needed as a diluent to prepare 1,500 mL of a 3% sodium chloride solution using a 4.5% sodium chloride solution: _______________. (Round your answer to the nearest hundredth, if needed)

If 125 mL of a solution has a mass of 134 g, calculate the specific gravity of the solution: _______________. Round your answer to four decimal places, if necessary.

The pharmacy has received an order for 0.2% triamcinolone cream. Triamcinolone cream is commercially available in strengths of 0.1% and 0.5%, and the pharmacy has both of these strengths on hand. Which of the following methods is the best method to determine how much of each strength to use to create the 0.2% triamcinolone cream?

Calculate the amount of potassium chloride powder needed to prepare 75 mL of 10% potassium chloride solution, using water as the solvent: _______________.

Which of the following is the volume of 186 g of water?

If 60 mL of a solution has a mass of 54.3 g, calculate the specific gravity of the solution: _______________. Round your answer to four decimal places, if necessary.

A 10% calcium chloride solution has a specific gravity of 1.854. Calculate the mass of 375 mL of the solution: _______________. Round to the nearest tenth if necessary.

In a liquid mixture that contains a solid medication, the percent strength represents the number of _____ of medication in each 100 mL of the mixture.

A 10% solution of magnesium sulfate has a specific gravity of 1.1053. Calculate the mass of 200 mL of the solution: _______________. Round to the nearest tenth if necessary.

How much cholestyramine powder is needed to prepare 4 oz of 6% cholestyramine paste, using Aquaphor as the base?

Which of the following is a measure of the density of a substance?

Calculate the amount of cream base needed to prepare 200 g of 0.07% betamethasone cream: _______________.

If 15 mL of a solution has a mass of 120 mg, what is the specific gravity of the solution?

Calculate the amount of 0.5% triamcinolone cream needed to prepare 100 g of 0.3% triamcinolone cream, using 0.1% triamcinolone cream as the diluent: _______________.