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Molarity Formula:
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Molarity (M) is a unit of concentration that represents the number of moles of a solute dissolved in one liter of solution. It is one of the most commonly used units in chemistry for quantifying solution concentration.
The calculator uses the molarity formula:
Where:
Explanation: The formula converts ng/mL to g/L (by multiplying by 10⁻⁶) and then divides by the molar mass to find the number of moles per liter.
Details: Accurate molarity calculation is essential for preparing solutions with precise concentrations, conducting chemical reactions, and performing quantitative analysis in laboratory settings.
Tips: Enter concentration in ng/mL and molar mass in g/mol. Both values must be positive numbers. The calculator will automatically compute the molarity in mol/L.
Q1: Why convert ng/mL to molarity?
A: Molarity provides a standardized way to express concentration that accounts for molecular weight, making it easier to compare concentrations of different substances.
Q2: What is the relationship between ng/mL and molarity?
A: Molarity = (ng/mL × 10⁻⁶) / molar mass. This converts mass concentration to molar concentration.
Q3: When is this conversion particularly useful?
A: This conversion is especially important in biochemistry and molecular biology when working with proteins, nucleic acids, and other biomolecules.
Q4: Are there limitations to this calculation?
A: This calculation assumes the solute is pure and doesn't account for density changes in solution. For precise work, temperature and pH should also be considered.
Q5: Can this calculator be used for any substance?
A: Yes, as long as you know the concentration in ng/mL and the molar mass of the substance, you can calculate its molarity.