Chemistry Formula
Stoichiometry Formula Formula
Relates mass, moles, and molar mass for chemical calculations.
Formula Summary
Stoichiometry Formula
Relates mass, moles, and molar mass for chemical calculations.
- Category
- Chemistry
- Equation
- n = m / M
- Calculator
- Use Stoichiometry Formula Calculator →
Equation
n = m / M
Variables
- n = number of moles
- m = mass
- M = molar mass
Units
- Amount of Substance: moles (mol)
- Mass: grams (g) or kilograms (kg)
- Molar Mass: grams per mole (g/mol)
When To Use This Formula
Use this formula when converting between mass, number of moles, and molar mass in chemical reactions and stoichiometric calculations.
Rearranged Equations
- m = n × M
- M = m / n
How to Use This Formula
- Identify the known values from the problem statement.
- Convert all values into compatible units.
- Substitute the values into the equation and calculate the result.
- Check that the final answer has the correct unit and meaning.