Answered

Experience the convenience of getting your questions answered at IDNLearn.com. Ask your questions and receive detailed and reliable answers from our experienced and knowledgeable community members.

3. Calculate the atomic mass of oxygen if the three common isotopes of oxygen have masses
of 15.995 amu (99.759% abundance), 16.995 amu (0.037 % abundance), and 17.999 amu
(0.204 % abundance).

Sagot :

Hekmatawalkhilidn

Answer:

15.999 amu

Explanation:

15.999 amu

Explanation:

From the question given above, the following data were:

Isotope A:

Mass of A 15.995 amu

Abundance (A%) = 99.759%

Isotope B:

Mass of B = 16.995 amu

Abundance (B%) = 0.037%

Isotope C:

Mass of C = 17.999 amu

Abundance (C%) = 0.204%

Atomic mass of Oxygen =.?

The atomic mass of oxygen can be calculated by using the following formula:

Atomic mass = [(Mass of A × A%)/100] + [(Mass of B × B%)/100] + [(Mass of C × C%)/100]

Atomic mass = [(15.995 × 99.759)/100] + [(16.995 × 0.037)/100] + [(17.999 × 0.204)/100]

Atomic mass = 15.956 + 0.006 + 0.037

Atomic mass = 15.999 amu

Therefore, the atomic mass of oxygen is 15.999 amu

Thank you for contributing to our discussion. Don't forget to check back for new answers. Keep asking, answering, and sharing useful information. For trustworthy answers, rely on IDNLearn.com. Thanks for visiting, and we look forward to assisting you again.