Chapter 13, Problem 55AP

Please correct answer and don't used hand raiting

Identify the indicated sets of protons as unrelated, homotopic, enantiotopic, or diastereotopic. H HA

Consider the titration of 100 mL of 0.100 M NaCl solution w/ 0.100 M AgNO3. Ecell after addition of 50 mL. Ecell after addition of 75 mL. Ecell after addition of 100 mL (equivalence point). Ecell after addition of 105 mL.

Cyclohexene and 2 hexyne both have the molecular formula C6H10. How would you use infrared spectroscopy to distinguish between these two compounds?

Please correct answer and don't used hand raiting

How could you distinguish between the following isomers by 13C-NMR: a. 1,2-Dimethylbenzene b. 1,3-Dimethylbenzene C. 1,4-Dimethylbenzene.

Per mole of fast, af males of C-C CH C-O OR bonda beads bonds- bonds Bond energy (kJ/mol) broken broken broken formed bonds formed methane 4 345 O 0 C-H 415 C-O 741 propane 2 8 5 0 0 0-11 464 00 498 hexane 5 17 14 19/20 18 25 25 160 14 All (kJ/mol fact) moles CO, produced (koel) per mole of fuel methane-82 propane -42.4 -31.1 hexane octane

Predict the splitting patterns you would expect for each proton in the molecules below. c. doublet a. septet H CH3 b. singlet d. quartet C1 H

Which structure of molecular formula C4H8C12 fits both the 'H NMR and 13C NMR spectra shown + Cl A. B. Cl C. a D. Cl 10 00-228 Low? 9 8 7 6 5 ppm 'H NMR 40 40 -89 200 180 160 140 120 100 -8 80 60 13 3 2 1 0 CD8-03-793 ppm 13C NMR 20 -20 0 An unknown has a molecular ion with a mass of 134. The relative abundance of the peak at 135 is 9.9%. a. What is the molecular formula of the unknown? b. How many rings or pi-bonds in the unknown? c. Propose two structures for the unknown. d. How could you distinguish your answers to "c" using 13C-NMR? Identify the indicated sets of protons as unrelated, homotopic, enantiotopic, or diastereotopic. H HA