Final answer:
Weight % (w/v) is the mass-volume percent ratio of solute mass to solution volume, expressed as a percentage.
Step-by-step explanation:
Weight % (w/v) is defined as the mass-volume percent ratio of solute mass to solution volume, expressed as a percentage. It is commonly used for intravenous fluids and is calculated by dividing the mass in grams of a solute by the volume in milliliters of the solution, and then multiplying by 100.