1. Tardigrade
  2. Question
  3. Chemistry
  4. Carbon has the following three isotopes with relative abundances and masses (amu) shown in the table. Isotopes Relative abundance ( %) Atomic mass (amu) 12 C 98.892 12 13 C 1.108 13.00335 14 C 2 × 10-10 14.00317 On the basis of above data, the average atomic mass of carbon will be

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Carbon has the following three isotopes with relative abundances and masses (amu) shown in the table.
Isotopes Relative abundance $(\%)$ Atomic mass (amu)
${ }^{12} C$ $98.892$ $12$
${ }^{13} C$ $1.108$ $13.00335$
${ }^{14} C$ $2 \times 10^{-10}$ $14.00317$

On the basis of above data, the average atomic mass of carbon will be

Some Basic Concepts of Chemistry

Solution:

From the given data in question, the average atomic mass of carbon will come out to be
$(0.98892)(12\, u )+(0.01108)(13.00335\, u )+\left(2 \times 10^{-12}\right)(14.00317 u )$
$=12.011\, u$