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Mass Per Volume Percent Formula:
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Mass per volume percent (% m/v) is a concentration measurement that expresses the mass of solute (in grams) per 100 mL of solution. It is commonly used in chemistry and pharmaceutical preparations to indicate solution concentration.
The calculator uses the mass per volume percent formula:
Where:
Explanation: The formula calculates what percentage of the solution's volume is made up by the mass of the solute.
Details: Mass per volume percent is crucial for preparing accurate solutions in laboratories, medical settings, and industrial applications. It ensures proper dosing in pharmaceutical preparations and consistent results in chemical experiments.
Tips: Enter the mass of solute in grams and the volume of solution in milliliters. Both values must be positive numbers greater than zero for accurate calculation.
Q1: What is the difference between % m/v and % w/v?
A: % m/v (mass/volume percent) and % w/v (weight/volume percent) are essentially the same measurement, both expressing grams of solute per 100 mL of solution.
Q2: When should I use % m/v instead of other concentration units?
A: % m/v is particularly useful when working with solid solutes dissolved in liquid solvents, especially in medical and pharmaceutical applications where precise dosing is critical.
Q3: Can % m/v exceed 100%?
A: Technically yes, if the density of the solute is greater than 1 g/mL, but in practice, most solutions have concentrations well below 100% m/v.
Q4: How does temperature affect % m/v measurements?
A: Since volume can change with temperature while mass remains constant, it's important to measure volume at a consistent temperature, typically room temperature (20-25°C).
Q5: Is % m/v the same as molarity?
A: No, % m/v is a mass-based concentration while molarity is moles per liter. To convert between them, you need the molar mass of the solute.