Chemistry
Mole Calculator (n = m / M) + Particle Count – Tutorial
On this page, you can find the logic, usage, and important details of the Mole Calculator (n = m / M) + Particle Count calculator.
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What is a Mole?
In chemistry, a mole is a counting unit for particles. 1 mole = 6.022×10²³ particles (Avogadro's Number).
Core Formula: n = m / M
- n: moles
- m: mass (g)
- M: molar mass (g/mol)
Inverse formulas: m = n·M | M = m/n
Particle Count
N = n · Nₐ | 0.5 mol → N = 0.5 × 6.022×10²³ ≈ 3.011×10²³
Gas Volume at STP
V ≈ n · 22.4 L (0°C, 1 atm, ideal gas)