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1) Write the aldol product that would be obtained if dibenzylketone condensed with itself. (Only a single condensation.) Thisproduct is not significant because benzil is more electrophilkicthan a simple ketone like dibezyl ketone. (HINT: explain theexpected effect of the 2nd carbonyl group on adjacent carbon on themagnitude of the δ+ on the first carbonyl group
2) Draw the mechanism for the crossed aldol condensation betweencyclohexane and benzaldehyde.
3) Draw a representation for TPCP that would represent its structure if the phenyls were perpendicular to the 5-membered ring(a paddle wheel structure) and a representation that represents the"propeller" structure is chiral. Is the paddle wheel structure chiral or achiral? How do you know?
Calculate the mass in grams for an iron bar that loses 2.72 when its temperature drops from 242 to 72.
A rolaids tablet contains calcium carbonate which neutralizes stomach acid If 44.55mL of 0.448 M hydrochloric acid is required to neutralize one tablet how many milligrams of calcium carbonate are in a rolaids tablet
The vapor pressure of the liquid C4H10 is 562.7mmHg at a temperature of 264.6K. The enthalpy of vaporization for this liquid is 22.4kJ/mol. What is the vapor pressure of C4H10 at a temperature of 286.6K in mmHg
Suppose that 150.2 J of heat energy is required to completely vaporize 5 g of a pure liquid. If the molar mass of the liquid is 95.64 g/mol, what is the molar enthalpy of vaporization of the liquid
The initial volume of the balloon is 5.00 , and the pressure is 760. The balloon ascends to an altitude of 20, where the pressure is 76.0 and the temperature is 50. What is the new volume, of the balloon in liters, assuming it doesn't break or leak
Calculate the APF for (a) the simple cubic and (b) body centered cubic lattices as volume of atoms/volume of cell. (c) Which structure is more dense given atoms of equal mass? The edge length for simple cubic is 2r. Remember that each corner atom ..
Conjugation of the functional group in alkyl socyanates has little impact on the antisymmetric -N=O stretching vibration located near 2770/cm . Explain.
Write a balanced equation including states of matter for the reaction of Zn(H2O)4 in aqueous NaCN.
isotope has a natural abundance of 57.21% and an atomic mass of 120.90382 amu. Calculate the percent abundance and atomic mass of the 123^Sb isoyope
How is concentration an intensive property? I mean if you add more amount of a substance(mass), the number of moles increase and so the concentration increases.
A Student dispenses 24.95 mL of a hydrochloric acid solution with an unknown concentration into an Erlenmeyer flask. The student then titrates the HCl solution with 0.168 M sodium hydroxide. If 24.33 mL of NaOH is required to reach the equivalence..
What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.154 M in sodium chloride and 0.030 M in magnesium sulfate. Assume complete dissociation for electrolytes.
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