Water Hardness Calculator Calculate water hardness based on calcium and magnesium content. 💧 Hardness = 2.497 × Ca + 4.118 × Mg Calcium content: mg/L ppm mmol/L Calcium ion (Ca²⁺)
Percentage Concentration ↔ Molarity Calculator 💡 Convert between percentage concentration and molarity with ease! Percentage → Molarity Molarity → Percentage Solution: Custom substance Water (H₂O) - 18.02 g/mol Sodium Chloride
Neutralization Calculator Calculate the normality of a solution by entering the values below. 💡 Normality (N) = Weight of solute / (Volume of solvent × Equivalent weight) Weight of solute:
Mixing Ratio Calculator Input your data (up to 10 substances). Make sure to use the same unit for all substances! Mass Volume 💡 All the values entered must have the
Henderson-Hasselbalch Calculator pKa value: The negative log of the acid dissociation constant Conjugate Base [A-] Concentration (M): The molar concentration of the conjugate base Conjugate Acid [HA] Concentration (M): The
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