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B Convert atomic mass to metric

  1. Mar 16, 2017 #1
    I have a complete brain freeze sorry, and cannot work this out.

    I have a helium atom of 4.0 amu and there are 6.0 x 10^24 atoms. How do I calculate the total mass in kg please?

  2. jcsd
  3. Mar 16, 2017 #2


    User Avatar

    Staff: Mentor

    1 amu = 1.66053904 x 10-27 kg
  4. Mar 16, 2017 #3
    Thanks Dr.
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