Zettamole (Zmol) – Definition, Conversion & Uses
The zettamole (symbol: Zmol) is an SI unit of amount of substance equal to 1021 moles. It uses the SI prefix zetta-, which denotes a factor of one sextillion (1021). The zettamole provides a convenient way to represent extremely large quantities of matter in scientific calculations.
What Is a Zettamole?
A zettamole is a unit of amount of substance equal to 1021 moles. It is one thousand examoles and one-thousandth of a yottamole.
Using the zettamole simplifies the expression of enormous quantities of atoms, molecules, ions, or other particles that would otherwise require very large numerical values in moles.
History of the Zettamole
The SI prefix zetta- was officially adopted by the General Conference on Weights and Measures (CGPM) in 1991. It was introduced to extend the International System of Units (SI) for representing extremely large quantities in science, engineering, and technology. The zettamole follows the same standardized naming convention as all SI-prefixed mole units.
Current Uses of the Zettamole
The zettamole is primarily used in theoretical chemistry, astronomy, cosmology, particle physics, and scientific research involving exceptionally large quantities of matter. While it is rarely encountered in routine laboratory work, it provides a standardized SI unit for representing very large amounts of substance.
Zettamole Conversion
One zettamole is equal to:
- 1 × 1021 moles (mol)
- 1,000 examoles (Emol)
- 0.001 yottamole (Ymol)
- 1 × 1018 kilomoles (kmol)
You can use ChangeUnit to convert zettamole to mole, examole, yottamole, and many other amount of substance units.