Dilution Factor Calculator What do you want to calculate? Dilution Factor Required Volumes Notation Type: Stock:Diluent (S:D) Stock:Total (S:T) Volumes Stock Volume (cm³) Diluent Volume (cm³) Total Volume (cm³) Dilution
Chemical Concentration Calculator What do you want to calculate? Mass Percentage (wt%) Molarity (mol/L) Mass per 100g of Water Density (g/cm³) Molar Mass (g/mol) Molarity (mol/L) Mass Percentage (wt%) Calculate
Buffer pH Calculator Buffer type: Acid Base Acid dissociation constant (Ka): pKa: Acid concentration: M mM Salt concentration: M mM Base dissociation constant (Kb): pKb: Base concentration: M mM Salt
Buffer Capacity Calculator Amount of acid/base: mol/ L mL Initial pH: Final pH: Buffer capacity: mol/ L mL Calculate Clear Results: Buffer Capacity Equation To find buffer capacity, you need
Bleach Dilution Calculator Bleach concentration: % Most household bleach is 5.25% to 8.25% sodium hypochlorite Desired chlorine concentration: mg/L ppm Desired chlorine volume: L gal ml Calculate Results: How to
Alligation Calculator ↑ Concentrations The concentrations can have any unit, but they all must be same: %, w/v, mg/ml, etc. Higher concentration: Lower concentration: Required concentration: ↑ Volumes Total volume
Activity Coefficient Calculator Charge number of ion (z): Ionic strength (I) in mol/L: Constant (A) in mol(-1/2)·kg(-1/2): Default: 0.509 (Debye-Hückel constant at 25°C) Calculate Results: Note: This calculator uses the
PPM to Molarity Converter Parts per million (ppm) Number of parts of a substance per million parts of a solution. 1 ppm = 1 mg/L in dilute aqueous solutions. ppm
Normality Calculator Mass of solute (m) The mass of the solute in the solution. g mg kg Equivalent weight of solute (E) Molecular weight divided by valency. For acids it's
Mole Fraction Calculator Solute The minor part of the solution, dissolved in a solvent. mol mmol g kg Solvent The greater part of the solution which dissolves the solute. mol