Question

Chemistry 2A Lab 13: Solution Calculations 12. What is the concentration of a solution made by adding 247 mL of pure liquid soap (100.0% soap) to total volume of 2.67 L? 13. Calculate the volume required of a 42.0% iodine solution to prepare 300.0 mL of a 23% iodine. 14. A patient is to receive 0.200 mg of morphine per day delivered subcutaneously by injection. How many mL of a 0.500 mg/mL vial of morphine is needed for one day of medication? 15. A patient requires 100.0 mg of Ceclor PO every 6.00 hours. Ceclor is available in 125 mg/5.00 mL concentration. How many milliliters should be used for one day? 16. One dose of 0.500 g Kefzol is to be administered by IV. 0,500 g Kefzol is diluted to 50.0 mL total volume. The drug is to be administered over 30.0 minutes. How many milliliters per hour will the IV pump be set to administer one dose?

Answer 1

Solution :(12) :

Aa we know that concentration can be calculated as

(v/v)%. =( Volume of solute / Volume of solution) *100

Here Given

volume of solute = 247 mL

Volume of solution = 2.67 L = 2670 mL

Concentration ( v/v)% = (247/2670)*100 = 9.25 %(v/v)