Molarity Calculator

Calculate the molarity (molar concentration) of a solution quickly and accurately. This calculator helps you determine the concentration of a solution in moles per liter (mol/L or M).

What is Molarity?

Molarity (M) is a measure of the concentration of a solution, expressed as the number of moles of solute per liter of solution. It’s one of the most common ways of expressing concentration in chemistry.

How to Use This Calculator

1. Enter the number of moles of solute
2. Enter the volume of the solution in liters
3. Click calculate to get the molarity

The calculator will automatically compute the molarity using the formula: M = moles of solute / liters of solution

Understanding the Results

The result is expressed in moles per liter (mol/L) or simply as M (molar). For example:

• 1 M = 1 mol/L
• 0.5 M = 0.5 mol/L
• 2 M = 2 mol/L

Common Applications

• Laboratory solution preparation
• Chemical reaction calculations
• Pharmaceutical formulations
• Academic chemistry work

Tips for Accurate Calculations

• Ensure your measurements are precise
• Convert all volumes to liters before calculating
• Double-check your units
• For very dilute solutions, scientific notation may be used

Frequently Asked Questions

Q: What is the difference between molarity and molality? A: Molarity is moles of solute per liter of solution, while molality is moles of solute per kilogram of solvent.

Q: Why is molarity important? A: Molarity is crucial for preparing solutions of specific concentrations and for calculating quantities needed in chemical reactions.

Q: Can molarity be negative? A: No, molarity cannot be negative as it represents a physical quantity of concentration.