Mole Ratio Calculator Formula
Understand the math behind the mole ratio calculator. Each variable explained with a worked example.
Formulas Used
Moles of Unknown
moles_unknown = moles_known * (coeff_unknown / coeff_known)Variables
| Variable | Description | Default |
|---|---|---|
moles_known | Moles of Known Substance(mol) | 3 |
coeff_known | Coefficient of Known | 2 |
coeff_unknown | Coefficient of Unknown | 3 |
How It Works
How to Use Mole Ratios
Formula
moles_unknown = moles_known × (coeff_unknown / coeff_known)
The mole ratio comes directly from the balanced equation coefficients.
Worked Example
3 mol of A with 2A -> 3B. How many moles of B?
moles_known = 3coeff_known = 2coeff_unknown = 3
- 01Mole ratio = 3/2
- 02Moles B = 3 × (3/2) = 4.5 mol
Ready to run the numbers?
Open Mole Ratio Calculator