Question

A sample of silicon is composed of 92.230 % Si-28, 4.683 % Si-29, and the rest is Si-30. Based on the given isotopic abundance, determine the sample's average atomic mass. (The mass of Si-28 is 27.977 amu, the mass of Si-29 is 28.976 amu, and the mass of Si-30 is 29.974 amu.) *
a. 28.797 amu
b. 28.085 amu
c. 29.980 amu
d. 28.075 amu

Answer 1

Answer:

Ans is a mark it is write in your notebook

Answer 2

Answer:

Option a is correct

Explanation: