Home
Class 11
CHEMISTRY
Carbon occur in nature as a mixture of C...

Carbon occur in nature as a mixture of `C-12` and `C-13`. Average atomic mass of carbon is `12.011` what is the `%` abundance of `C-12` in nature ?

A

0.889

B

0.989

C

0.899

D

0.799

Text Solution

Verified by Experts

Let % abundance of `""^12C` = x
% abundance of `""^13C`=100-x
`therefore " " (12x)/(100)+(13(100-x))/(100)=12.011`
12x+1300-13x=1201.1 `rArr` x=98.9
Thus % abundance of `""^12C` is 98.9%.
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    NCERT FINGERTIPS|Exercise Mole Concept And Molecular Masses|24 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    NCERT FINGERTIPS|Exercise Percentage Composition|9 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    NCERT FINGERTIPS|Exercise Laws Of Chemical Combination|14 Videos

  • REDOX REACTIONS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • STATES OF MATTER

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

Carbon found nature as a mixture of C-12 and C-13. The average atomic mass of carbon is 12.011u. What is the percentage abundance of carbon-12 in nature ?

What is the average of first 12 natural numbers?

What is the average of first 12 natural numbers?

(1)/(12)th gm atom of carbon

The element bron occurs in nature as two isotopes havein atomic masses 10 u and 11 u . What are the percentage abundances of these isotopes in a sample of boron having average atomic mass of 10.8 u?