bethanyleeannjoseph0 bethanyleeannjoseph0

15-10-2020
Chemistry

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Calculate the atomic mass of nitrogen if the two common isotopes of nitrogen have masses
of 14.003 amu (99.63% abundance) and 15.000 amu (0.37% abundance).

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misshambone2004 misshambone2004

15-10-2020

(99.63/100 x 14.003) + (0.37/100 x 15)

13.9511889 + 0.0555 = 14.0066889amu

13.95 + 0.0555 = 14.0055 (same thing just rounded numbers)

(You can round that to 14amu)

Answer is 14 amu

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