Mass Percent Calculator – Solution Concentration
Calculate mass percentage concentration of solutions
Table of Contents
How to Use
- Enter the mass of solute
- Enter the total mass of solution
- Select your mass unit (g or kg)
- Click calculate to see the mass percentage
Understanding Mass Percent
Mass percent (also called weight percent) is a way of expressing the concentration of a solution. It represents the mass of solute divided by the total mass of the solution, multiplied by 100 to express as a percentage.
Common Applications
- Chemistry: Preparing solutions of specific concentrations
- Pharmacy: Calculating drug concentrations
- Food industry: Determining ingredient percentages
- Agriculture: Measuring fertilizer concentrations
- Environmental science: Analyzing pollutant levels
Calculation Tips
- Ensure all masses are in the same unit before calculating
- Remember: mass of solution = mass of solute + mass of solvent
- For dilute solutions, mass of solution ≈ mass of solvent
- Always verify that solute mass ≤ solution mass
Frequently Asked Questions
- What's the difference between mass percent and volume percent?
- Mass percent uses masses (weight), while volume percent uses volumes. Mass percent is more accurate for non-aqueous solutions and when dealing with solids dissolved in liquids.
- Can mass percent exceed 100%?
- No, mass percent cannot exceed 100%. The mass of solute cannot be greater than the total mass of the solution. If you get >100%, check your measurements.
- How do I convert mass percent to molarity?
- To convert mass percent to molarity, you need the solution's density and the solute's molecular weight. Use: Molarity = (mass% × density × 10) / molecular weight.
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