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Shkiper50 [21]
3 years ago
12

Carbon has two naturally occurring isotopes: C-12 (natural abundance is 98.93%) and C-13 (natural abundance is 1.07%). How many

C-13 atoms are present, on average, in a 30000-atom sample of carbon?
Chemistry
1 answer:
Sav [38]3 years ago
5 0
The number of atoms present, on average, will be the natural abundance of the isotope times the number of atoms in the sample => number of C-13 atoms = C-13 abundance * number of atoms in the sample = 1.07% * 30,000 = 1.07 * 30,000 / 100 = 321 atoms.<span> Answer: 321 atoms.</span>
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