Question

if isotopic distribution of C-12 and C-14 is 98% and 2% respectively, then the number of
C-14 atoms in 12 g of carbon is​

Answer 1

Answer:

14 g of carbon 14 atom contains =6.023×1023atoms

1 g of carbon 14 atom contains =6.023×1023/14

12 g of carbon 14 atom contains =(6.023×1023×12)/14

=5.16×1023

Now its 2% is (5.16×1023×2)/100

=10.32×1021

So, the number of C−14 atoms in 12 g of carbon is 10.32×1021

Answer 2

Answer:

14 g of carbon 14 atom contains =6.023×1023atoms

1 g of carbon 14 atom contains =6.023×1023/14

12 g of carbon 14 atom contains =(6.023×1023×12)/14

=5.16×1023

Now its 2% is (5.16×1023×2)/100

=10.32×1021

So, the number of C−14 atoms in 12 g of carbon is 10.32×10^23 which is 1.032 x 10^22

so, (a) is correct ans

Explanation:

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