Calculating the Average Atomic Mass of Sodium Sample

How can we calculate the average atomic mass of a sample of Sodium?

What is the process of determining the average atomic mass based on the percent abundance of each isotope?

Calculation of Average Atomic Mass of Sodium Sample

To calculate the average atomic mass of a sample of Sodium, we need to consider the percent abundance of each isotope present in the sample. By multiplying the percent abundance of each isotope by its atomic mass and summing up the results, we can determine the average atomic mass.

When calculating the average atomic mass of a sample of Sodium, it's crucial to follow a step-by-step process to ensure accuracy. Firstly, identify the percent abundance of each isotope present in the sample. In this case, we have 94.56% Na-23 and 5.44% Na-22.

Next, multiply the percent abundance of each isotope by its respective atomic mass. For Na-23, we multiply 0.9456 (percent abundance) by 23 (atomic mass), and for Na-22, we multiply 0.0544 (percent abundance) by 22 (atomic mass).

After obtaining the individual results, add the calculated values together to find the total average atomic mass of the Sodium sample. In this scenario, the average atomic mass of the sample of Sodium is approximately 23.99648 atomic mass units (amu).

Remember that the average atomic mass takes into account the weighted average of all naturally occurring isotopes of the element, considering their relative abundances. This calculation method allows us to determine the overall atomic mass of a sample accurately.