Mass Spectra of Elements
AP Chemistry · Flashcards
AP CHEMISTRY · FLASHCARDS
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QUESTION
What information does a mass spectrum provide about an element?
QUESTION
What is the role of acceleration in mass spectrometry?
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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