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About this tool
Calculate molarity, dilutions, ppm and percentages.
Understanding the dilution equation
For compatible concentration units and additive volumes, the relationship C₁V₁ = C₂V₂ estimates the concentration after dilution.
Worked example
A 10-unit stock concentration diluted from 5 mL to a final volume of 100 mL produces 0.5 concentration units.
Frequently asked question
Can this be used for reactive mixtures?
Not without additional validation. Chemical reactions, nonadditive volumes and density changes can invalidate this simple model.