Isotonic saline and is often given to patients intravenously to replenish lost fluids. Isotonic saline is a 0.9% 9G/100ml) solution of salty water. You are asked to make up 21 of isotonic saline. How much salt should you weigh out?

Answer 1

21 what? mL, liters, gallons, water tanks?
Also, 0.9% would mean 0.9 g/100 wouldn't it?

Answer 2

2.25