Molarity Formula:
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Molarity (M) is a measure of the concentration of a solute in a solution, defined as the number of moles of solute per liter of solution. It's one of the most commonly used units of concentration in chemistry.
The calculator uses the molarity formula:
Where:
Explanation: The equation calculates how concentrated a solution is by dividing the amount of solute by the total volume of the solution.
Details: Molarity is crucial for preparing solutions with precise concentrations, conducting chemical reactions, and performing titrations in analytical chemistry.
Tips: Enter the amount of solute in moles and the volume of solution in liters. Both values must be positive numbers.
Q1: What's the difference between molarity and molality?
A: Molarity is moles per liter of solution, while molality is moles per kilogram of solvent. Molarity changes with temperature, molality doesn't.
Q2: What are typical molarity values?
A: Concentrations range from very dilute (10^-6 M) to highly concentrated (10+ M), depending on the application.
Q3: How do I convert grams to moles for the calculation?
A: Divide the mass in grams by the molar mass of the substance (g/mol) to get moles.
Q4: Does molarity depend on temperature?
A: Yes, because volume changes with temperature. For temperature-independent measurements, use molality.
Q5: Can I calculate molarity for gas solutions?
A: Yes, but the volume must be measured at standard temperature and pressure (STP) conditions.