Average Atomic Mass Calculator Online
Average Atomic Mass Calculator
Enter the isotopic masses and their natural abundances for an element. This calculator will compute the element's average atomic mass using the weighted average formula.
The Average Atomic Mass Calculator is an educational tool that calculates a chemical element’s average atomic mass using its isotope masses and natural abundances. Users enter the isotopic mass (in atomic mass units, u) and percentage abundance for each isotope (up to an unlimited number, with two default rows given), and the calculator computes the weighted average atomic mass, shows a comprehensive contribution table, and validates the overall abundance.
How to Use the Average Atomic Mass Calculator Online
Calculating average atomic mass is straightforward with the Average Atomic Mass Calculator. Follow these steps for instant results.
Step-by-Step Instructions:
- Enter Isotope Data:
- For each isotope, input:
- Name (optional, e.g., C-12).
- Isotopic Mass (e.g., 12.0000).
- Abundance (e.g., 98.9).
- Two default rows are provided.
- For each isotope, input:
- Add or Remove Isotopes:
- Click “Add Isotope” to include more isotopes.
- Click the trash icon to remove an isotope row.
- Calculate: Click “Calculate Average Atomic Mass” to view results.
- Review Results:
- See the average atomic mass (e.g., 12.0110 u).
- Check the details table:
- Isotope Name, Mass, Abundance, Contribution (e.g., C-12: 12.0000 u, 98.9%, 11.8680 u).
- Note the total abundance (e.g., 100%) with a warning if not ≈100%.
- Reset (Optional): Click “Reset” to clear inputs and start over
Why Use the Average Atomic Mass Calculator Online?
The Average Atomic Mass Calculator simplifies hard chemical calculations, providing simple answers and instructive insights. Here’s why it’s amazing.
- Accurate Calculations: Calculates the weighted average atomic mass with precision.
- Dynamic Inputs: Add and delete isotope rows as needed, beginning with two default rows.
- Detailed Output: A table summarising each isotope’s contribution.
- PDF Export: Save results for documentation or research.
- Free and accessible: There is no payment or registration required, and it works on any device.