Chemistry, 03.07.2020 22:01, chaseashley24
Given the following information, elucidate the structures of compounds A and B. Both compounds are soluble in dilute aqueous HCl, and both have the same molecular formula. The mass spectrum of A has M^+: 149 (intensity 37.1% of base peak) and M^+ + 1: 150 (intensity 4.2% of base peak). Other spectroscopic data for A and B are given below. Justify the structures you propose by assigning specific aspects o the data to the structures. Make sketches of the NMR spectra.
(a) The IR spectrum for compound A shows two bands in the 3300-3500-cm_1 region. The broadband proton decoupled ^13 C NMR spectrum displayed the following signals (information 3 from the DEPT 13C spectra is given in parentheses with the 13C chemical shifts): ^13 C NMR: d 140 (C), 127.(C), 125 (CH), 118 (CH), 24 (CH2), 13 (CH3)
(b) The IR spectrum for compound B shows no bands in the 3300-3500-cm_1 region. The 4 broadband proton decoupled ^13 C NMR spectrum displayed the following signals (information from the DEPT 13C spectra is given in parentheses with the 13C chemical shifts): ^13 C NMR: d 147 (C), 129 (CH), 115 (CH), 111 (CH), 44 (CH2), 13 (CH3)
Answers: 3
Chemistry, 22.06.2019 02:40, alexandraparava
For a patient with the following pes statement and interventions, which would be the most appropriate monitoring and evaluating data? pes statement: inadequate calcium intake related to food and nutrition related knowledge deficit as evidenced by statements that the only dietary source of calcium is milk and she believes that she is lactose intolerant. patient’s nutrition prescription is for a diet providing 1200 mg calcium per day. patient was provided with in-depth nutrition education on alternative dietary and supplement sources of calcium. a. calcium intake (at subsequent visit) b. knowledge assessment by asking patient to identify food sources from menus and shopping list (at the end of the current visit) c. serum calcium (at next visit) d. both a and b e. both a and c
Answers: 2
Chemistry, 22.06.2019 09:30, strevino9178
In apex! a liquid heated beyond a certain temperature becomes
Answers: 1
Chemistry, 23.06.2019 00:30, lareynademividp0a99r
Gasoline has a density of 0.740 g/ml. if you have 328 grams of gasoline, what is the volume in milliliters?
Answers: 1
Given the following information, elucidate the structures of compounds A and B. Both compounds are s...
Mathematics, 27.06.2019 04:00
Mathematics, 27.06.2019 04:00
Geography, 27.06.2019 04:00