Calculators

Calculates the number of moles from the mass of a substance and its molecular weight.

Calculates the molecular weight (also known as molar mass) of a chemical compound based on the sum of the atomic weights of each element in the molecular formula.

Calculates the pKa value of a solution using either the Henderson-Hasselbalch equation or the acid dissociation constant (Ka).

Calculates the type of chemical bond formed between two atoms based on the difference in their electronegativity values.

Calculates the effective nuclear charge (Zeff) experienced by an electron in an atom, taking into account the shielding effect of other electrons.

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.

Estimates the water hardness based on the concentration of calcium and magnesium ions in the water.

Calculates the normality of an acid or base solution using titration data. This calculator is based on the principle of neutralization in acid-base reactions.

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 pH of a buffer solution using the Henderson-Hasselbalch equation.