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A sample of chlorine has two naturally occurring isotopes. The isotope Cl-35 (mass 35.0 amu) makes up 75.8% of the sample, and the isotope Cl-37 (mass = 37.0 amu) makes up 24.3% of the sample. What is the average atomic mass for chlorine?

Respuesta :

ramirocarracedo

Answer:

[tex]M_{av}=35.521amu[/tex]

Explanation:

As in any sample you will have 75.8% of Cl-35 iosotopes and 24.3% of Cl-37 iosotopes you can get the average atomic mass as:

[tex]M_{av}=(35amu*75.8+37amu*24.3)/100=35.521amu[/tex]

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