Units of chemical measurement

SI unit of amount of substance

In physics, an electronvolt (symbol eV), also written as electron-volt and electron volt, is a unit of measurement equivalent to the amount of kinetic energy gained by a single electron accelerating through an electric potential difference of one volt in a vacuum. When used as a unit of energy, the numerical value of 1 eV expressed in unit of joules (symbol J) is equal to the numerical value of the charge of an electron in coulombs (symbol C). Under the 2019 revision of the SI, this sets 1 eV equal to the exact value Historically, the electronvolt was devised as a standard unit of measur

unit of mass defined as ¹⁄₁₂ of the mass of a carbon-12 atom

The katal (symbol: kat) is a unit of the International System of Units (SI) used for quantifying the catalytic activity of enzymes (that is, measuring the enzymatic activity level in enzyme catalysis) and other catalysts. One katal is that catalytic activity that will raise the rate of conversion by one mole per second in a specified assay system.

SI unit of mass density

SI unit of molar energy

SI unit of density

mass deposited per unit charge

relative sweetness of sugars