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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 is one of the most commonly used units in chemistry for quantifying solution concentrations.
The calculator uses the molarity formula:
Where:
Explanation: This formula calculates the concentration by dividing the mass of the solute by the product of its molecular weight and the volume of the solution.
Details: Accurate molarity calculation is essential for preparing chemical solutions, conducting experiments, pharmaceutical formulations, and various industrial processes where precise concentrations are required.
Tips: Enter mass in grams, molecular weight in g/mol, and volume in liters. All values must be positive numbers greater than zero for accurate calculation.
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 is temperature-dependent, while molality is not.
Q2: Can I use different units with this calculator?
A: The calculator is designed for grams, g/mol, and liters. Convert other units to these before calculation for accurate results.
Q3: How precise should my measurements be?
A: Precision depends on your application. For most laboratory work, measurements should be made to at least 3-4 significant figures.
Q4: What if my solute doesn't dissolve completely?
A: The formula assumes complete dissolution. If your solute doesn't dissolve completely, the actual molarity will be lower than calculated.
Q5: Can this calculator handle very dilute or concentrated solutions?
A: Yes, the formula works for any concentration as long as the values are physically possible and the solute is completely dissolved.