Mole
| Formula / Notation | n = m/M = N/Nₐ = PV/RT |
|---|---|
| Also Known As | Amount of substance, Chemical amount |
What is Mole?
The SI unit for amount of substance, defined as exactly 6.02214076 × 10²³ elementary entities (Avogadro's number). One mole of any substance contains the same number of formula units. The mole bridges the atomic scale and the laboratory scale in chemistry.
Formula & Notation
Other Names / Synonyms: Amount of substance, Chemical amount
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
The SI unit for amount of substance, defined as exactly 6.02214076 × 10²³ elementary entities (Avogadro's number). One mole of any substance contains the same number of formula units. The mole bridges the atomic scale and the laboratory scale in chemistry.
Every stoichiometric calculation in chemistry. Preparing standard solutions of known concentration. Determining empirical and molecular formulas from elemental analysis. Gas law calculations. Electrochemistry (Faraday law: moles of product = It/nF). Pharmaceutical compound dosing. Industrial chemica…
The mole is a counting unit — no direct hazard. However, errors in mole calculations can cause dangerous over-concentration of reagents. Always verify calculations when preparing concentrated solutions or scaling up reactions.
The formula or notation for Mole is: n = m/M = N/Nₐ = PV/RT