Complex sentence: For example, for the ion C 7 H has an exact mass of 91.0 Da and a charge number of +2, the the ion will be observed at 45.5 Th in a mass spectrum.
Split into simpler sentences: For example, for the ion C 7 H has an exact mass of 91.0 Da. The ion will be observed at 45.5 Th in a mass spectrum.