Home
Back
Molarity Conversion Formula:
| From: | To: |
Parts per billion (ppb) to molarity conversion is a calculation used in chemistry to convert concentration measurements from mass-based units (ppb) to molar concentration units (mol/L) for aqueous solutions, assuming water density of 1 g/mL.
The calculator uses the conversion formula:
Where:
Explanation: The formula accounts for the conversion from mass-based concentration to molar concentration, assuming water density of 1 g/mL which is valid for dilute aqueous solutions.
Details: Molarity is a fundamental concentration unit in chemistry that allows for stoichiometric calculations in chemical reactions, solution preparation, and quantitative analysis. Converting ppb to molarity is essential for comparing concentrations across different measurement systems.
Tips: Enter ppb concentration value and molecular weight in g/mol. Both values must be positive numbers. The calculator assumes water as the solvent with density of 1 g/mL.
Q1: What does ppb mean?
A: Parts per billion (ppb) means 1 part of solute per 1 billion parts of solution. For water, 1 ppb = 1 μg/L.
Q2: Why is water density assumed to be 1?
A: For dilute aqueous solutions, the density is very close to 1 g/mL, making this a valid approximation for most practical purposes.
Q3: Can this calculator be used for other solvents?
A: No, this calculator is specifically designed for water. For other solvents, the density must be taken into account in the conversion.
Q4: What's the difference between molarity and molality?
A: Molarity is moles per liter of solution, while molality is moles per kilogram of solvent. They are different concentration measures.
Q5: How accurate is this conversion?
A: The conversion is mathematically exact for the given formula. Accuracy depends on the precision of your input values and the validity of the water density assumption.