Question

3. Dilutions: Saline solution, used in IV bags, is 0.900 % (m/v) NaCl. Suppose that, as a hospital technician, you are asked to prepare 200. L of this solution for use that afternoon. The stockroom contains a supply of concentrated (35.0% m/v) NaCl solution available for use. Describe in words or pictures how you would prepare this solution, supporting your procedure with a calculation. Available materials include distilled water and a volumetric container of the appropriate size that you need (just call it a volumetric container- a "flask" that large would be pretty unwieldly!).

Answer 1

0-9001 m nach means 100 me solution contains 0-900 9 wall. of solution < volume here 2 2001 x 103 mL 2 2004 103 mL to m a mass nach volume of solution x 100+ 0-900 2 mass wall 200-X103 mu mass Nach needed for this a 1800g a 180x1039. of wall from 35-07-m to get this mass - so we Nact have solution t mass rac! m ? tolume x 100% of solution (Anme) Cid 35-07. 2 1-foxog X1001 volume solvron volume of 350r Solution needed a 5142-86 ml x 163 2 5-14 L In a container of 200-L volume mark using SL volumenic container add 35.ox m Nac! to or add SL using IL volument contained using Stret 5 the e 2000 container and then tove 100mL of This is appropriate) 35.ot-m Nach solnion OS SL and the add Yom of A Cororerosty no avilable 35.04 m wall solution using 100 mL and Yome volumewe R containers respectively, and then add distilled water to get the total volume of solution to 2004 to give 2001 of 0-900 + w nast solution. Amount of distilled water need to add a 200L 5.141 2 194.86L.