Constants & Units · constant
Avogadro constant
N_A = 6.022 140 76 × 10²³ mol⁻¹
- Unit
- mol⁻¹
- Value
- 6.022 140 76 × 10²³
- Exact
- yes
- Note
- Fixes the mole. How many entities are in a mole — now a defined count, not a measurement.
- Symbol
- N_A
- Category
- Defining (SI)
- Numeric
- 6.02214076e+23
- Uncertainty
- exact
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