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Concentration Formula:
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Concentration is a measure of the amount of solute dissolved in a given quantity of solvent or solution. In chemistry, molar concentration (or molarity) is the most common unit, expressed as moles of solute per liter of solution (mol/L).
The calculator uses the basic concentration formula:
Where:
Explanation: The formula simply divides the number of moles of solute by the volume of the solution in liters to determine the concentration.
Details: Concentration calculations are fundamental in chemistry for preparing solutions, conducting experiments, and understanding reaction stoichiometry. Accurate concentration measurements are essential for reproducible results in both research and industrial applications.
Tips: Enter the amount of substance in moles and the volume in liters. Both values must be positive numbers. The calculator will compute the concentration in mol/L (molarity).
Q1: What's the difference between concentration and molarity?
A: Molarity is a specific type of concentration measurement (moles per liter). Concentration can also be expressed in other units like molality (moles per kg solvent) or mass percent.
Q2: How do I convert grams to moles for this calculation?
A: Divide the mass in grams by the molar mass of the substance (g/mol) to get moles. You'll need to know the chemical formula to determine molar mass.
Q3: What if my volume is in milliliters?
A: Convert milliliters to liters by dividing by 1000 (since 1 L = 1000 mL) before entering the value.
Q4: Can this calculator be used for dilutions?
A: Yes, you can use it to calculate the new concentration after dilution by entering the moles remaining (same as before dilution) and the new total volume.
Q5: What are typical concentration ranges?
A: Concentrations vary widely: from ~10 M for concentrated acids to micromolar (10^-6 M) or nanomolar (10^-9 M) for biological solutions.