From moles to reactions

The mole connects the microscopic world of atoms and molecules to measurable laboratory amounts. One mole contains exactly the Avogadro constant number of specified entities.

The mole connects the microscopic world of atoms and molecules to measurable laboratory amounts. One mole contains exactly the Avogadro constant number of specified entities.

Stoichiometry turns a balanced chemical equation into a quantitative relationship between reacting species.

Stoichiometry turns a balanced chemical equation into a quantitative relationship between reacting species.

Enthalpy is a thermodynamic state function. At constant pressure, under the usual conditions for pressure-volume work, its change is especially useful for discussing heat transferred.