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CHM 102 Objective Question

Question

Chlorine naturally exists as two isotopes: Chlorine-35 (abundance 75.78%, mass 34.97 amu) and Chlorine-37 (abundance 24.22%, mass 36.97 amu). What is the calculated average atomic mass of chlorine?
Options
A 36.00 amu
B 35.45 amu
Correct Answer
C 34.97 amu
D 35.97 amu
Correct Answer

Option B is the correct answer.

Detailed Explanation

The average atomic mass is calculated as (0.7578 * 34.97) + (0.2422 * 36.97) = 35.45 amu.

Hint

No hint available

Question Info