The intensities of peaks at 69 m/z, 70 m/z, and 71 m/z are 1.2, 31.2, and 1.7, respectively. How many carbons does the compound have? 100 MS-N-1334 80 60 40 20 10 15 20 30 35 40 45 50 55 60 65 70 m/z Relative Intensity 25

Help needed with assigning the peak signals and determining the J values of this Isoamyl Acetate molecule. Thank you so much!

IR Spectrum (liquid film) 184 4000 100 80 60 40 20 40 13C NMR Spectrum (50.0 MHz, CDCI, solution) proton decoupled 200 ¹H NMR Spectrum (600 MHz, CDCI, solution) 1 10 9 8 3000 % of base peak 80 128 my 2000 V (cm¹) 119 M+* 134 120 160 m/e expansion 124 ppm 160 1600 I 7 200 I 6 120 ppm 1200 800 Mass Spectrum C10 H14 280 solvent 80 240 I 5 7.4 1 4 expansion 3 Problem 95 UV Spectrum max 262 nm (log10 € 2.5) solvent: ethanol -CH3 C 40 7.2 2 1 0 8 (ppm) TMS 1 I 1 0 8 (ppm) 201

Which C-H bonds are responsible for the following peaks/signals? C6H1202 s are Peak A = Peak B= Peak C= Enter 12 if a H is not labeled that created the peak/signal. this peak disappears with the addition of D20 By PPM