Ethyl acetate has the structure CH₃CO₂CH₂CH₃.Which set of m/z peaks is most consistent with this structure?

Question

Quizplus · Accepted Answer

Ethyl acetate has a molecular weight of 88 g/mol. The m/z peak at 73 corresponds to the loss of a methyl group (CH3, 15 g/mol) from the molecular ion, and the peak at 43 corresponds to the acylium ion (CH3CO+, 43 g/mol), which are common fragmentation patterns for esters like ethyl acetate in mass spectrometry.

Ethyl Acetate Has the Structure CH3CO2CH2CH3

Ethyl Acetate Has the Structure CH₃CO₂CH₂CH₃