Indicate the expected coupling pattern for the hydrogen(s) bonded to each labeled carbon in the above compound by entering the letter(s) corresponding to the coupling pattern into each box (s singlet; d= doublet; t = triplet; q = quartet; quin = quintet; sex = sextet; h = heptet). = a: 0 × (s/d/t/q/quin/sex/h) b: d × (s/d/t/q/quin/sex/h) a b S

The mass spectrum below is most likely of: 45 100 80 60 15 40 60 20 50 massicharge (m/z) CHy-CH-CH-OH HC-CH-OH H =CI CHy-CH-CH-NH CH-CH-0-CH,

In the mass spectrum of the following compounds, which is the tallest—the peak at m/z = 57 or the peak at m/z = 71? a. 3-methylpentane b. 2-methylpentane

Dibenzalacetone CDC13 11 10 7 6 4 3 2 1 ppm a. Match the hydrogens in dibenzalacetone to the signals in the spectrum. b. Does this sample also contain any benzaldehyde? c. Does this sample also contain any other impurities?

type answers no work needed

Select the compound that would show a larger than usual M + 2 peak. O A. CH3CH2F O B. CH3CH2CH2| OC. CH3CH2OH O D.CH3CH2CI

The mass spectrum for acetophenone is shown below. a) Where does the molecular ion show up? ?) b) Which peak is the base peak? ? 1) The mass spectrum for acetophenone is shown below. Relative Intensity 100- 80- 20- acetophenone 0-tyttim 20 10 30 40 50 60 77 trommlilily 70 m/z 80 90 100 105 Ć 110 120 120 a) Where does the molecular ion show up? (m/z = ?) b) Which peak is the base peak? (m/z = ?) c) Draw the structure of the charged species responsible for the peak at m/z = 120. d) Draw the structure of the charged species responsible for the peak at m/z = 105. e) Draw the structure of the charged species responsible for the peak at m/z = 77.

whats the answer for this? how to draw it?

The mass spectrum of a ketone (C7H14O) exhibits a base peak at m/z = 57. Is the ketone most likely heptan-2-one, heptan-3-one, or heptan-4-one? Explain

Identify the Brassicasterol peak of the GC-MS of Burn Morel mushrooms (Tomentosa) and the M (+/-) peaks that are present. Include the mass and signature intensities of the peaks main product.