Chapter 1, Problem 1.112E

7. The addition of HBr to 2,5-dimethyl-2,4-heptadiene gives the same product, A, at both low and high temperatures. Provide the structure of A and explain the kinetic and thermodynamic product are the same in this reaction. HBr -78°C or 60°C A

3B: Convert the starting material into the chiral epoxytriol below. OH OH = OH OH

3D: Convert the aromatic triketone to the 1,3,5-triethylcyclohexane shown below. ہوئے

Indicate how to find the energy difference between two levels in cm-1, knowing that its value is 2.5x10-25 joules.

The gyromagnetic ratio (gamma) for 1H is 2.675x108 s-1 T-1. If the applied field is 1,409 T what will be the separation between nuclear energy levels?

Chances Ad ~stract one 11. (10pts total) Consider the radical chlorination of 1,3-diethylcyclohexane depicted below. 4 • 6H total $4th total Statistical pro 21 total 2 H A 2H 래 • 4H totul < 3°C-H werkest bund - abstraction he leads to then mo fac a) (6pts) How many unique mono-chlorinated products can be formed and what are the structures for the thermodynamically and statistically favored products? рос 6 -વા J Number of Unique Mono-Chlorinated Products Thermodynamically Favored Product Statistically Favored Product b) (4pts) Draw the arrow pushing mechanism for the FIRST propagation step (p-1) for the formation of the thermodynamically favored product. Only draw the p-1 step. You do not need to include lone pairs of electrons. No enthalpy calculation necessary H H-Cl

What is the lone pair or charge that surrounds the nitrogen here to give it that negative charge?

Last Name, Firs Statifically more chances to abstract one of these 6H 11. (10pts total) Consider the radical chlorination of 1,3-diethylcyclohexane depicted below. 4 • 6H total $ 4th total 21 total 4H total ZH 2H Statistical H < 3°C-H werkst - product bund abstraction here leads to the mo favored a) (6pts) How many unique mono-chlorinated products can be formed and what are the structures for the thermodynamically and statistically favored products? Proclict 6 Number of Unique Mono-Chlorinated Products f Thermodynamically Favored Product Statistically Favored Product b) (4pts) Draw the arrow pushing mechanism for the FIRST propagation step (p-1) for the formation of the thermodynamically favored product. Only draw the p-1 step. You do not need to include lone pairs of electrons. No enthalpy calculation necessary 'H H-Cl Waterfox

2. (a) Many main group oxides form acidic solutions when added to water. For example solid tetraphosphorous decaoxide reacts with water to produce phosphoric acid. Write a balanced chemical equation for this reaction. (b) Calcium phosphate reacts with silicon dioxide and carbon graphite at elevated temperatures to produce white phosphorous (P4) as a gas along with calcium silicate (Silcate ion is SiO3²-) and carbon monoxide. Write a balanced chemical equation for this reaction.