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Having determined the correct stereo chemical structure of dibromocholestrol, propose a mechanism for its formation. Did the bromine molecule approach the double bond from the top (C10 methyl side) or bottom?propose an experiment which might prove which approach is preferred.
An aqueous antifreeze solution is 40.0% ethylene glycole (C2H6O2) by mass. The density of the solution is 1.05 g/cm3. Compute the molarity, molarity, as well as mole fraction of the ethylene glycol.
Draw the Lewis Structure for the ClF2+ion and AlF4-. For each ion, what are its electron-pair and molecular geometries? What orbitals on Cl and F overlap to form bonds between these elements
Find another example of a solid-phase reagent that is used in organic synthesis, and give an example of a specific reaction where it has been used. In this case, what advantage does the solid-phase reagent provide over the analogous solution-phase..
Assuming the mixture has the same specific heat (4.184J/goC) and density (1.00 g/cm3) as water, calculate the heat (in J) transferred to the surroundings, qsurr.
Evaluate the electronic configuration for ionization energies of Magnesium, the orbital number in which the electrons are added in phosphorus ion, and the one will lose in the ionization of Alluminium.
A gigantic balloon is filled to a pressure of 752 mm Hg at 12.5 ºC with pure helium gas. Once inflated, the balloon holds a total volume of 2.2 x 106 liters. How many grams of helium were used in this process?
Whats the melting point would be if you mixed acetanilide with 10 % by weight of naphthalene(acetanilide mp 113.5-114; naphthalene 80-82)
List and describe at least three prokaryotic cellular features that could be targeted in this way to inhibit or kill a bacterial pathogen.
Problem- Warfarin (C19H16O4, 308.34 g/mol) converted to CHI3. One mole of CHI3 was produced for each mole of warfarin that reacted. The collected CHI3 was reacted with silver to precipitate the iodine as AgI according to the following reaction.
Calculate the change in entropy when 50g of 80C water is poured into 100g of 10C water. Assume the container is insulated so that no heat is lost to the surroundings.
Write balanced equations showing how three of the common strong acids given below ionize to produce hydrogen ion.
For the reaction shown, calculate how many moles of NO2 form when 5.0 mol N2O5 completely reacts. 2 N2O5(g) 4 NO2(g) + O2(g)
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