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Concentration Converter
Convert between molar and mass concentration units.
Molecular weight is required when converting between molar and mass-based units.
Solution Preparation
Calculate the required mass of a solid reagent.
Formula: mass = M × V(L) × MW ÷ purity fraction
Dilution Calculator
Calculate using C₁V₁ = C₂V₂.
Leave V₁ blank to calculate the required stock volume.
Molecular Weight
Calculate molecular weight from a chemical formula.
Molarity Calculator
Calculate molarity, moles, mass or solution volume.
M = n / V
Normality Calculator
Calculate normality, equivalents, mass or solution volume.
Formula: N = equivalents / volume (L)