A patient received 2.0 g of NaCl in 8 hours. How many milliliters of a 0.40% (m/v) NaCl (saline) solution were delivered?

Answer 1

0.40% m/v means 0.4 g NaCl/100 mL. So
(0.40 g/100 mL) x ?mL = 2 g. Solve for ?mL.