IB skill practice

Interpret mass spectra and isotope patterns

Paper 1, Paper 2 5 marks Difficulty 5

Peak intensity ratio

In a mass spectrum from a industrial gas analysis, the base peak has intensity \(100\) and another peak has intensity \(65\). Calculate the relative intensity ratio peak/base. Enter the answer and choose the interpretation that matches the chemistry.

Worked practice: chemistry evidence and answer

Use the chemical evidence first, then enter the result and interpretation that match it.