Question

the natural abundance of carbon-12 and carbon-13 are 98.90% and 1.10% respective Ly . calculate the average atomic mass of carbon​

Answer 1

Answer:

1/12 gm is the average atomic mass of Carbon

Answer 2

Answer:

          12.01 g

Explanation:

Isotopes     Isotopic mass    % Abundance

   ¹²C                   12                        98.9

  ¹³C                  13                         1.10

Average Atomic Mass = (12 × 98.9) + (13 × 1.1) / 98.9 + 1.1

                                     = 1186.8 + 14.3 / 100

                                     = 1201.1 / 100

                                = 12.01 g