Calculators

Calculates the number of moles in a given mass of a substance using its molecular weight.

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

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 air-fuel ratio (AFR), which represents the mass ratio of air to fuel in an internal combustion engine. This ratio is crucial for efficient combustion and emissions control.

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

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 relative risk (RR) to determine the likelihood of an event occurring in an exposed group versus a non-exposed group.

This calculator estimates the area in acres that can be worked in one hour based on the speed of the equipment and the width of the swath being worked.

Calculates accumulated growing degree units (GDUs), which are used to estimate crop development rates based on temperature data.