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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, expressed as the number of moles of solute per liter of solution. It is one of the most common units used in chemistry to quantify concentration.
The calculator uses the molar concentration formula:
Where:
Explanation: This formula calculates how many moles of a substance are dissolved in one liter of solution, providing a standardized way to express concentration.
Details: Molar concentration is fundamental in chemical reactions, solution preparation, stoichiometry calculations, and laboratory work. It allows chemists to precisely measure and control the amount of reactants in solutions.
Tips: Enter the number of moles and volume in liters. Both values must be positive numbers. The calculator will compute the molar concentration in mol/L.
Q1: What's 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 molar mass 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 substance and application.
Q4: Why is molar concentration important in titrations?
A: Molar concentration allows precise calculation of reactant amounts in titration experiments, enabling accurate determination of unknown concentrations.
Q5: Can I use different volume units?
A: Yes, but you must convert to liters first since molarity is defined as moles per liter. Common conversions: 1 L = 1000 mL = 1000 cm³.