Calculators

Calculates the estimated Total Dissolved Solids (TDS) in water based on Electrical Conductivity (EC). TDS represents the total concentration of dissolved substances in water, typically expressed in parts per million (ppm) or milligrams per liter (mg/L).

Calculates the saponification value of a fat or oil, which represents the amount of base (typically KOH) required to saponify 1 gram of fat. This value is crucial in soap making and lipid analysis.

Calculates the pH of a solution based on hydrogen ion concentration ([H+]), or the acid dissociation constant (Ka) and solution concentration.

Calculates the mass/volume percent, mass percent, and volume percent of a solution.

Converts percentage concentration of a solution to molarity, given the density and molecular weight of the solute.

Calculates the mass percentage of a component in a mixture.

Calculates the alligation ratios needed to mix two solutions of different concentrations to achieve a desired intermediate concentration.

Calculates the activity coefficient of an ion in a solution using the Debye-Hückel equation or its extended versions.

Converts between moles, mass, and molecular weight.

Calculates the percent ionic character of a chemical bond based on the electronegativity difference between two atoms.