Molarity, Molality & Normality Calculator
Calculate molarity, molality, and normality for chemical solutions. Find concentration, moles, volume, or mass with step-by-step solutions.
Definitions
- Molarity (M): moles of solute per liter of solution
- Molality (m): moles of solute per kilogram of solvent
- Normality (N): equivalents of solute per liter of solution
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Calculate Solution Concentrations
Whether you're doing chemistry homework or preparing lab solutions, this calculator helps you work with the three main concentration units: molarity (M), molality (m), and normality (N). Enter your known values and instantly calculate what you need.
Understanding Concentration Units
Molarity measures moles of solute per liter of solution - most common in lab work. Molality uses kilograms of solvent instead of solution volume, making it temperature-independent. Normality considers the reactive capacity (equivalents) per liter.
Key Formulas
M = n/V, m = n/kg_solvent, N = eq/VWhy Use This Calculator?
Multiple Calculation Modes
Calculate concentration, moles, volume, or mass for any unit.
Step-by-Step Solutions
See the complete calculation process for learning.
Three Concentration Types
Work with molarity, molality, or normality in one tool.
How to Use
Common Applications
Lab Solution Prep
Calculate how much solute needed for desired concentration.
Chemistry Homework
Verify answers and understand calculation methods.
Dilution Calculations
Find volumes needed when diluting stock solutions.
Titration Analysis
Work with normality for acid-base reactions.
Frequently Asked Questions
Use molality when temperature changes are involved (like boiling point elevation) because it doesn't depend on volume, which changes with temperature. Molarity is fine for most room-temperature lab work.