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Atom Economy Calculator

Chemistry
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Calculates the atom economy of a chemical reaction, which is a measure of the proportion of reactant atoms that become incorporated into the desired product. It helps assess the efficiency and waste generated in a chemical process.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Molecular Weight of Desired Product and Sum of Molecular Weights of Reactants in the units shown.

Step 2

Read Atom Economy in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Esterification

Molecular Weight of Desired Product: 116.16 g/mol; Sum of Molecular Weights of Reactants: 122.12 g/mol

Atom Economy: 95.11955454 %

SN2 Reaction

Molecular Weight of Desired Product: 150 g/mol; Sum of Molecular Weights of Reactants: 200 g/mol

Atom Economy: 75 %

Grignard Reaction

Molecular Weight of Desired Product: 180 g/mol; Sum of Molecular Weights of Reactants: 250 g/mol

Atom Economy: 72 %

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