Question

Q1. The atomic masses of H-1(99.98%) and H-2 (0.0156%). Calculate the average atomic mass of hydrogen. Q2. The atomic masses of O-16 (99.76%), O-17(0.04%) and O-18(0.20%). Calculate the average atomic mass of oxygen.

Answer 1

Answer:

1. Hydrogen =1
2. Oxygen =16

Answer 2

Answer:

Explanation:

Average atomic mass of hydrogen

= (99.98×1 + 0.0516×2)/100

= 1.0008

Average atomic mass

= (99.76×16 + 17×0.04+18×0.20)/100

= 16.01