Atom Economy Calculator
⚗ Moles & Stoichiometry. Use the Atom economy formula to find atom economy, mr of the desired product, total mr of the reactants: pick the value you want, type the others, and the answer updates as you go.
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Atom economy | % |
| Mr of the desired product | g/mol |
| Total Mr of the reactants | g/mol |
Worked example
Find the atom economy when Mr of the desired product = 44 g/mol, Total Mr of the reactants = 93 g/mol.
Using atom economy = (Mr of desired product)/(Σ Mr of all reactants) × 100: Atom economy = 47.312 %.
Frequently asked questions
What is the formula for Atom economy?
atom economy = (Mr of desired product)/(Σ Mr of all reactants) × 100.
What do the letters stand for, and what units are used?
Atom economy in %, Mr of the desired product in g/mol, Total Mr of the reactants in g/mol.
How do you calculate atom economy?
Put the values into atom economy = (Mr of desired product)/(Σ Mr of all reactants) × 100. For example, with Mr of the desired product = 44 g/mol, Total Mr of the reactants = 93 g/mol, atom economy = 47.312 %.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (atom economy, mr of the desired product, total mr of the reactants) and fill in the others: it rearranges the formula for you.
