Petamole (Pmol) – Definition, Conversion & Uses
The petamole (symbol: Pmol) is an SI unit of amount of substance equal to 1015 moles. It uses the SI prefix peta-, which denotes a factor of one quadrillion (1015). The petamole provides a convenient way to represent extremely large quantities of matter while remaining consistent with the International System of Units (SI).
What Is a Petamole?
A petamole is a unit of amount of substance equal to 1015 moles. It is one thousand teramoles and one-thousandth of an examole.
The petamole simplifies the representation of enormous quantities of atoms, molecules, ions, or other particles that would otherwise require lengthy numerical values expressed in moles.
History of the Petamole
The SI prefix peta- was officially adopted by the General Conference on Weights and Measures (CGPM) in 1975. It was introduced as part of the International System of Units (SI) to provide standardized names for very large multiples of measurement units. The petamole follows the same naming convention as other SI-prefixed mole units.
Current Uses of the Petamole
The petamole is primarily used in theoretical chemistry, physics, astronomy, cosmology, and scientific research involving exceptionally large amounts of matter. Although it is uncommon in everyday laboratory work, it provides a standardized SI unit for expressing very large quantities of substance.
Petamole Conversion
One petamole is equal to:
- 1 × 1015 moles (mol)
- 1,000 teramoles (Tmol)
- 0.001 examole (Emol)
- 1 × 1012 kilomoles (kmol)
You can use ChangeUnit to convert petamole to mole, teramole, examole, and many other amount of substance units.