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Molar Concentration Formula:
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Molar concentration (also called molarity) is a measure of the concentration of a chemical species in a solution. It is defined as the number of moles of a solute dissolved per liter of solution. Molarity is one of the most common units used to quantify the concentration of a solution in chemistry.
The calculator uses the molar concentration formula:
Where:
Explanation: This formula calculates how many moles of solute are present in each liter of solution, providing a standardized way to express solution concentration.
Details: Molar concentration is fundamental in chemical reactions, solution preparation, stoichiometric calculations, and analytical chemistry. It allows chemists to precisely control reaction conditions and predict reaction outcomes.
Tips: Enter the number of moles of solute and the volume of solution in liters. Both values must be positive numbers. The calculator will compute the molar concentration in mol/L (M).
Q1: What is the difference between molarity and molality?
A: Molarity (M) is moles per liter of solution, while molality (m) is moles per kilogram of solvent. Molarity is temperature-dependent, while molality is not.
Q2: How do I convert grams to moles?
A: Use the formula: Moles = Mass (g) / Molar Mass (g/mol). You need to know the molecular weight of the substance.
Q3: What are typical molar concentration ranges?
A: Concentrations can range from very dilute (10⁻⁶ M) to concentrated (10+ M), depending on the application and solubility limits.
Q4: Why is molarity preferred in many calculations?
A: Molarity is convenient for laboratory work since volumes are easier to measure than masses, and it directly relates to reaction stoichiometry.
Q5: How does temperature affect molar concentration?
A: Molarity changes with temperature because volume expands or contracts. For precise work, specify the temperature or use molality.