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Q.

Carbon has the following three isotopes with relative abundances and masses (amu) shown in the table.On the basis of above data, the average atomic mass of carbon will be

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a

12.000 u

b

12.011 u

c

12.015 u

d

13.000 u

answer is B.

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Detailed Solution

From the given data in question the average atomic mass of carbon will come out to be (0.98892) (12 u) + (0.01108) (13.00335 u) + (2×10-12)(14.00317 u) = l2.011 u
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Carbon has the following three isotopes with relative abundances and masses (amu) shown in the table.On the basis of above data, the average atomic mass of carbon will be