A saline solution is 0.9% NaCl. What masses of NaCl and water would be required to prepare 50. L of this saline solution? Assume that the density of water is 1.000g/mL and that the NaCl does not add to the volume of the solution.

Question

A saline solution is 0.9% NaCl.  What masses of NaCl and water would be required to prepare 50. L of this saline solution?  Assume that the density of water is 1.000g/mL and that the NaCl does not add to the volume of the solution.

DrBob222 · Accepted Answer

0.9% NaCl = 0.9 g/100 mL (assume density of 1.00 g/mL and NaCl doesn't add to the volume). So that would be 0.9 x (50,000 mL/100 mL) = ??

Ana · Answer

450 grams

Anonymous · Answer

Physiological saline solutions used in intravenous in- jections have a concentration of 0.90% (mass/volume). (a) How many grams of are needed to prepare 500.0 mL of this solution?