Transmission Transmission Transmission A. Compound with a molecular weight of 138. 4000 3500 3000 2500 2000 1500 B. A liquid hydrocarbon a molecular weight of 120. Wavenumber (cm-1) 4000 3500 3000 2500 2000 C. Compound with a molecular weight of 87. 1000 1500 1000 500 Wavenumber (cm-1). 4000 3500 3000 2500 2000 1500 1000 500 Wavenumber (cm-1) 500

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