Mass Spectra of Elements
AP Chemistry · Flashcards · Application
AP CHEMISTRY · FLASHCARDS
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QUESTION
Determine the isotopic composition of chlorine using its mass spectrum.
QUESTION
Determine the presence of sulfur isotopes in a mass spectrum.
QUESTION
Find the relative atomic mass given isotopic masses and abundances.
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ANSWER
Calculate using
RAM
=
sum of (m/z) × abundance
total abundance
\text{RAM} = \frac{\text{sum of (m/z) × abundance}}{\text{total abundance}}
RAM
=
total abundance
sum of (m/z) × abundance
. Weighted average formula using isotopic masses and abundances.
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