Do your protons correspond to aldehyde or ketone functionality? Explain why or why not. Are any protons attached to an aromatic ring? Explain why or why not. Are vinylic, allylic, benzylic protons present? Explain why or why not. Are there hydrogens on carbons next to electronegative atoms? Explain why or why not.

please draw the molecule and label it based on the data in the sheet and use the label in the data table.

Compound 4, Formula + Unknown MS: M peak at 74 C-NMR: There Z are (3) signals. Compound 4, Formula Unknown MS: M* peak at m/z 74 100 90 80 70 60 50 40 30 20 10 of 4000 mmm 1 H 3500 11-12 ppm 3000 C-NMR: There are (3) signals. 2500 2000 1800 1600 1400 1200 1000 800 2 H 3 H

Match the peaks in this spectrum with the carbons on the structure below. Feedback: Your submission: B) I: 60.9 ppm You have incorrectly identified which atoms are responsible for the peaks in this spectrum. Review a correlation chart to predict chemical shifts. II: 25.1 ppm I: .2 рpm IV: 11.6 ppm Question 13 of 18 Match the peaks in this spectrum with the carbons on the structure below. A) I: 25.1 ppm II: 60.9 ppm II: 33.2 ppm IV: 11.6 ppm B) I: 60.9 ppm II: 25.1 ppm II: 33.2 ppm IV: 11.6 ppm C) CI I: 25.1 ppm II: 60.9 ppm I | |I IV III: 11.6 ppm IV: 33.2 ppm D) I: 11.6 ppm II: 60.9 ppm III: 25.1 ppm IV: 33.2 ppm

Describe commonly used standards for proton NMR? Please answer at your own easy words. Answer should be to the point.

Please help, am using old tests to study for MCAT and i need help with this question! Which compounds (from the picture attached) corresponds to the 4H NMR in the image attached.  Annotate the spectra with any and all relevant signals that demonstrate the relationship and support your answer choice.Explain the meaning behind your annotations and how they correspond to the structure you choose. thanks in advance

Based on the lettering system, please assign these letters to these peaks on real proton NMR

Can you explain this nmr