Saline solutions (NaCl in water) used to deliver intravenous drugs are 0.89%(w/v). What mass of NaCl is found in 500.0 mL of such a solution?
A) 0.45 g
B) 0.89 g
C) 4.5 g
D) 8.9 g

Question

Quizplus · Accepted Answer

The mass of NaCl in a 0.89%(w/v) solution is calculated as 0.89% of the volume in mL, so for 500.0 mL, it's (0.89/100)*500.0 = 4.45 g, which rounds to 4.5 g.

Saline Solutions (NaCl in Water) Used to Deliver Intravenous Drugs