The boxes are labeled by ranges within the infrared spectrum, representing the wavelengths at which specific functional groups absorb energy. The scale is shown in wavenumbers, cm-¹. Classify each functional group according to the approximate range where it would produce a stretch on the spectrum. Note: The stretches of the functional groups may not fill the entire range. 3700-3200 cm-¹ 3200-3000 cm-¹ C-H aromatic O-H alcohol 3000-2500 cm-¹ C=O aldehyde 2500-2000 cm-¹ 2000-1800 cm-¹ 1800-1600 cm-¹ Answer Bank C=N nitrile

Bb Microsoft PowerPoi X A molecule with the molecular formula of CsH10O produces the IR spectrum shown below. Draw a structure that best fits this data. Bb Microsoft Pow X ← → с app.101edu.co ← Microsoft PowerPoi X Bb Microsoft PowerPoi X 3000 Microsoft Pow X app.101edu.co 3000 2000 [a] A molecule with the molecular formula of C7HBO produces the IR spectrum shown below. Draw a structure that best fits this data. Wavnumbers") Bb Microsoft Pow: X Nucleophilic Substi X Nucleophilic: Problem 22 of 16 X Aktiv Chemistry Atoms, Bonds and Rings Draw or tap a new bond to see suggestions. Aktiv Chemistr X Problem 24 of 16 Atoms, Bonds and Rings Charges X b Search results X Charges C Post a new questio Ⓒo X CA molecule wi X + + B Undo Remove Undo Remove ★ I Reset Ⓒ Done Reset * ☐ Ⓒ Done T Drag To Pan x Submit ⠀ ★ T I Drag To Pan F Submit

a) Propose structures for compounds of the following molecular formulas, using the spectra given below.Show your work

Match the following IR spectrum with the correct molecule.

Considering IR spectroscopy, which of the following statements is incorrect?    options:   Concentrated alcohols give rise to broad signals while dilute alcohols give rise to narrow signals   Carboxylic acids exist as dimer due to hydrogen bonding and thus produce a narrow signal at 3600 cm-1 and a characteristic signal due to C=O at 1700 cm-1   C=O bonds produce strong signals in an IR spectrum while C=C bonds often produce a weak signals   Symmetrical C=C bonds and C≡C bonds do not produce signals   Primary amines produce two signals resulting from symmetric stretching and asymmetric stretching

The simulated APT spectrum of a compound with the molecular formula C6H12 is shown. Draw a structure that is consistent with this data.

How do I interpret, label, and determine which molecule this H NMR graph represents?  The three molecule choices are methylene cyclohexane, 3-methylcyclohexene, or 1-methylcyclohexene. (the two pictures of the H NMR graph is from the same graph)

Based on the spectra provided, draw the structure. Label each unique carbon and hydrogen with the letters A, B, C… for use in assigning NMR peaks. fill in the data table assigning peaks in each spectrum. You should assign: • All 1H NMR peaks • Significant IR peaks above 1600 cm Example of what the table should include (imagine the structure of ethanol is drawn with the CH3 hydrogens labeled as A, the CH2 hydrogens labeled as B, and the OH hydrogen labeled as C) :  hydrogen proton chemical shift  integration splitting pattern couples to.. A 1.2 3 triplet B B 3.7 2 quartet A C 2.6 1 singlet -

Why do aldehydes, esters, and amides all have a strong absorption in the 1630-1780 cm1 region of their IR spectra? A) The bond between H and the sp³-hybridized C in these functional groups vibrates in this energy range. B) Each of these functional groups has at least two resonance structures, and the different vibrations of the resonance structures give off energy in this region. C) The bond between O and the sp²-hybridized C in these functional groups vibrates at a frequency in this energy range. D) Light at this wavenumber causes the average C to O bond length to increase which causes more of this light to be transmitted. E) An electron in the bond of these functional groups gets excited to the * orbital.

Each of the two IR spectra are one of the following benzene derivatives: benzaldehyde, benzoic acid, benzyl alcohol, methyl benzoate, and benzamide. What derivative is represented by each graph?