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SingaporeChemistryQuick questions
Analytical Techniques
Quick questions on Mass spectrometry and molecular mass: Singapore A-Level H2 Chemistry
4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are isotope patterns?Show answer
Some elements have more than one common isotope, producing extra peaks:
What is q1?Show answer
A mass spectrum has its highest non-isotope peak at . State the relative molecular mass and suggest the compound. [2 marks]
What is q2?Show answer
Explain why a compound containing one chlorine atom shows two molecular ion peaks in a 3:1 ratio. [2 marks]
What is q3?Show answer
A molecular ion at gives a fragment at . Identify the group lost. [1 mark]
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