Calculators

Calculates the atom economy of a chemical reaction, which is a measure of the proportion of reactant atoms that become incorporated into the desired product. It helps assess the efficiency and waste generated in a chemical process.

Calculates the rate constant of a chemical reaction using the Arrhenius equation, which relates the rate constant to the activation energy, temperature, and pre-exponential factor.

This calculator helps you convert between different concentration units, including molarity (mol/L) and percentage concentration (% w/v, % v/v, % w/w).

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

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

Calculates the molality of a solution given the moles of solute and the mass of the solvent.

Calculates the number of molecules in a given number of moles using Avogadro's number.

Determines the electron configuration and number of valence electrons for a given element based on its atomic number.

Calculates the molar mass (molecular weight) of a chemical compound or element. Enter the chemical formula to calculate its molar mass.

Calculates the number of protons, neutrons, and electrons in an atom based on its atomic number and mass number. Assumes a neutral atom unless the charge is specified.