🎓 Chemistry • Mole Calculations
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Mole Calculator (Grams ⇄ Moles ⇄ Particles)
Converts grams of a compound to moles (n = m / M) and total particle count using Avogadro’s number (6.022 × 10²³).
Mole Converter & Stoichiometric Road Map
Grams ⇄ Moles ⇄ Number of Molecules ⇄ Gas Volume at STP
Current: 18.015 g/mol
Interactive Stoichiometric Mole Road Map
Total Amount of Substance
2.0000 moles
Mass Equivalent (m = n × M)
36.03 g
36030 mg • 0.03603 kg
Particle Count (N = n × N_A)
1.2044e+24
Individual Atoms / Molecules
Ideal Gas Volume at STP
44.828 L
At 0 °C (273.15 K) & 1 atm
Step-by-Step Stoichiometric Conversion Derivations
1. Moles Evaluation: n = 2.0000 mol (2000.00 mmol) 2. Mass Conversion: m = n × M = (2.0000 mol) × (18.015 g/mol) = 36.0300 g 3. Particle Count: N = n × N_A = (2.0000 mol) × (6.02214 × 10²³ mol⁻¹) = 1.2044e+24 particles (atoms/molecules) 4. Gas Volume at STP: V = n × V_m = (2.0000 mol) × (22.41 L/mol) = 44.828 Liters
What is a Mole in Chemistry?
A mole is the SI unit for amount of substance, containing exactly 6.02214076 × 10²³ elementary entities (Avogadro's number).
Formula & Step-by-Step Calculation
n = m / M, N = n × N_A
Moles equals mass over molar mass; particles equals moles times Avogadro’s number.
Worked Step-by-Step Examples
Example 1
How many moles in 36.03 grams of Water (H2O, M = 18.015 g/mol)?
Solution: 2.000 moles (1.204 × 10²⁴ water molecules)
• 36.03 g / 18.015 g/mol = 2.000 mol
Common Real-World & Academic Use Cases
- ✓ Laboratory chemical reagent prep
- ✓ Stoichiometric reactant scaling
- ✓ Atomic population counting
How to Use the Mole Calculator (Grams ⇄ Moles ⇄ Particles)
1
Input Molar Mass
Enter compound molar mass in g/mol.
2
Input Mass or Moles
Fill in grams or moles.
3
Read Conversion
Inspect moles and particle count.
Frequently Asked Questions
Q: What is Avogadro's number?
6.02214076 × 10²³ particles per mole.