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The Atom Economy Calculator is a powerful tool that helps chemists, students, and researchers determine the efficiency of chemical reactions.
By understanding how much of the reactants are effectively converted into the desired product, users can optimize reactions and reduce waste in chemical processes.
This calculator not only provides the Atom Economy but also related metrics such as Percentage Yield, Theoretical Yield, and Reaction Efficiency, ensuring a comprehensive analysis.
Atom Economy is a measure of how efficiently atoms from the reactants are utilized in forming the final product.
High atom economy indicates that most atoms from the reactants are incorporated into the product, reducing waste and cost.
It is expressed as a percentage, calculated using the mass of the product divided by the total mass of reactants multiplied by 100.
Atom Economy is crucial in green chemistry as it helps minimize waste and environmental impact.
Industries can optimize chemical processes, save costs, and improve sustainability by focusing on reactions with high atom economy.
It also aids in educational understanding, helping students visualize efficiency and resource utilization in reactions.
Atom Economy (%) = (Mass of Desired Product ÷ Mass of Reactants) × 100
Example 1: If 50g of product is obtained from 100g of reactants, Atom Economy = (50 ÷ 100) × 100 = 50%.
Example 2: Producing 120g product from 200g reactants results in Atom Economy = 60%.
Example 3: In a reaction yielding 80g product from 160g reactants, Atom Economy = 50%.
Example 4: Obtaining 90g product from 150g reactants gives Atom Economy = 60%.
Example 5: A reaction with 40g product from 80g reactants results in Atom Economy = 50%.
| Reaction | Reactants (g) | Product (g) | Atom Economy (%) | Percentage Yield (%) | Theoretical Yield (g) | Efficiency (%) |
|---|---|---|---|---|---|---|
| R1 | 100 | 50 | 50 | 48 | 52 | 46 |
| R2 | 200 | 120 | 60 | 58 | 122 | 58 |
| R3 | 150 | 90 | 60 | 55 | 95 | 57 |
| R4 | 80 | 40 | 50 | 48 | 42 | 49 |
| R5 | 120 | 60 | 50 | 50 | 60 | 50 |
| R6 | 180 | 100 | 55 | 52 | 105 | 53 |
| R7 | 90 | 45 | 50 | 47 | 48 | 47 |
Chemists aim to maximize atom economy by choosing reactions where by-products are minimal.
This reduces environmental waste, lowers production costs, and improves overall reaction sustainability.
Even small changes in reactant selection or reaction pathway can significantly improve efficiency.
| Reaction Type | Typical Atom Economy (%) | Advantages | Disadvantages | Cost Efficiency ($) | Environmental Impact | Notes |
|---|---|---|---|---|---|---|
| Addition | 90 | Minimal by-product | Limited scope | 200 | Low | Common in synthesis |
| Substitution | 60 | Flexible | By-products | 150 | Medium | Moderate use |
| Elimination | 70 | Efficient | Requires conditions | 180 | Medium | Used in industry |
| Condensation | 50 | Widely applicable | Water by-product | 130 | High | Common in polymers |
| Oxidation | 40 | Useful for synthesis | Hazardous reagents | 250 | High | Controlled conditions |
| Reduction | 65 | Efficient | Special catalysts | 220 | Medium | Selective |
| Rearrangement | 55 | Structural changes | Complex | 200 | Medium | Specialized |
| Compound | Reactant Mass (g) | Product Mass (g) | Atom Economy (%) | Percentage Yield (%) | Theoretical Yield (g) | Reaction Efficiency (%) |
|---|---|---|---|---|---|---|
| Water | 18 | 18 | 100 | 98 | 18 | 98 |
| Ammonia | 34 | 17 | 50 | 45 | 17 | 45 |
| Sodium Chloride | 58 | 58 | 100 | 95 | 58 | 95 |
| Ethylene | 28 | 28 | 100 | 90 | 28 | 90 |
| Acetic Acid | 60 | 60 | 100 | 92 | 60 | 92 |
| Methanol | 32 | 32 | 100 | 88 | 32 | 88 |
| Glucose | 180 | 180 | 100 | 85 | 180 | 85 |