Chemistry A-Level
candidate formulae
What candidate formulae means in Chemistry A-Level, as defined for AQA.
Definition of candidate formulae
Check what you remember
Read the wording for your board, then hide it and explain candidate formulae in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Formulae with the right whole-number mass that are listed and then added up using the precise masses.
Topics that use candidate formulae
- Mass spectrometry (AQA A-Level)
Related terms
- comparison to several decimal places
- high resolution
- isomers not distinguished
- molecular ion peak
- precise atomic masses
- rejecting alternatives
Using candidate formulae in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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