Home
Back
Weight/Volume Percentage Formula:
| From: | To: |
Weight/volume percentage (w/v %) is a common way to express the concentration of a solution. It represents the mass of solute (in grams) dissolved in 100 mL of solution. This concentration unit is widely used in chemistry, pharmacy, and medical applications.
The calculator uses the weight/volume percentage formula:
Where:
Explanation: The formula calculates what percentage of the solution's volume is made up by the solute's mass.
Details: Accurate concentration calculations are essential for preparing solutions in laboratories, pharmaceutical formulations, medical treatments, and industrial processes. Proper concentration ensures desired chemical reactions and therapeutic effects.
Tips: Enter the mass of solute in grams and the volume of solution in milliliters. Both values must be positive numbers. The calculator will compute the weight/volume percentage concentration.
Q1: What is the difference between w/v % and w/w %?
A: w/v % expresses mass of solute per volume of solution, while w/w % expresses mass of solute per mass of solution. w/v % is more common for liquid solutions.
Q2: When is w/v % typically used?
A: w/v % is commonly used in pharmaceutical preparations, medical solutions, and laboratory reagents where precise concentration in liquid form is required.
Q3: Can w/v % exceed 100%?
A: No, since it represents the percentage of mass per volume, it cannot exceed 100% under normal conditions.
Q4: How accurate is this calculation?
A: The calculation is mathematically precise. Accuracy depends on the precision of your measurements for mass and volume.
Q5: What are common w/v % concentrations in everyday products?
A: Saline solution (0.9% w/v), many medications, intravenous fluids, and laboratory reagents commonly use w/v % concentration.