Ask Question
28 January, 23:54

Determine the average atomic mass of helium, which has two isotopes having atomic masses 4.0026 amu and 3.0160 amu. The relative abundance of the two isotopes is 99.9999 percent and 0.0001 percent, respectively.

+1
Answers (1)
  1. 29 January, 03:35
    0
    You just need to multiply each atomic mass by its percent abundance and add the results.

    1. 4.0026x (99.9999%) = 4.0026

    2. 3.0160z (0.0001%) = 0.000003016

    average atomic mass = 4.0026 + 0.000003016 = 4.0026
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Determine the average atomic mass of helium, which has two isotopes having atomic masses 4.0026 amu and 3.0160 amu. The relative abundance ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers