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Compound A (C7H14O2) is chiral and shows a peak at 170 ppm in the 13C NMR (partial spectrum). This compound undergoes hydrolysis to give two new compounds B and C. Compound B (C4H10O) is also chiral. Compound C (C3H6O2) is not. Upon Jones oxidation (CrO3, H2SO4), compound B yields an achiral compound D. Compound D can also be prepared from compound C by the following reaction sequence: 1. SOCl2, 2. Me2CuLi. Alternatively, compound C can be converted to compound E by reaction with NaOH followed by benzoyl chloride (PhCOCl). Compound E shows two strong absorbances at 1765 and 1840 cm-1 in the IR. On the basis of this data, draw the structures of compounds A to E. Show your work for full credit.
Question- Arrange the following aqueous solutions in order of increasing vapor pressure at 25C: 0.35 m c3H4(OH)2; 0.50 m sugar; 0.20 m KBr; and 0.20 m Na2SO4.
While 4.77g of a nonelectrolyte solute is dissolved in water to make 785mL of solution at 23 C the solution exerts an osmotic pressure of 809 torr.
Osmosis and dialysis differ in a. whether the solvent flows through the membrane or not b. the effects of temperature on determining the net flow c. the size and type of particle that can pass through the membrane d. more than one choice is correct
A piece of a newly synthesized material of mass 25.0 g at 80.0C is placed in a calorimeter containing 100.0 g of water at 20.0C. If the final temperature of the system is 24.0C, what is the specific heat capacity of this material?
A would-be around-the-world balloonist is preparing to make a trip in a helium-filled balloon. The trip begins in early morning at a temperature of 15oC. By mid-afternoon, the temp has increased to 30oC. Presuming the pressure remains constant at ..
Determine the pH of a solution that is 1.07% HCl by mass (Assume a density of 1.01 g/ml for the solution.)
If A water tank has two outlets one 1m above the bottom of the tank, the other 3m above the bottom of the tank. Explain if the tank is initially full and is 6m high, define what will the velocity of the water be in both outlets
At what temperature (in C) does benzene boil when the external pressure is 470 torr
For each of the subsequent reactions, indicate which substance is oxidized as well as which reduced. Explain which substance is the oxidizing agent and which is the reducing agent
What is the rate constant? what would happen if you increase the concentration of NO by a factor of 1.9?
Write the elemental symbol, with charge, for when Aluminum forms an ion and tell whether it is an anion or a cation. Think about whether it gains or loses electrons.
What is the balanced cell reaction for the following echem cell set-up. Pt(s) / PbO2(s) / Pb(NO3)2, HNO3 // Cr(NO3)3 / Cr(s)
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