There are 3 isotopes of carbon. Carbon-12, Carbon-13 and Carbon-14. The average atomic mass of carbon is 12.011. Which isotope of carbon is the most abundant? Why?
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A soil sample tested in a triaxial compression apparatus failed when the total maximum and minimum principal stresses were 100 kpa and 40 kpa, respectively. The pore pressure measured at failure was 10 kpa. The effective principal stress ratio at failure is
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Explanation:
The relative atomic mass of carbon is 12.011, which is extremely close to 12.0. This means that the masses C-13, and C-14 are practically negligible when contributing to the relative atomic mass of carbon.
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