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Why is the meso-Stilbene dibromide much less soluble in all solvents than the dl-isomer from the bromination of cis-stilbene? (consider the melting points)
C4H10O with boiling points of A (117.5) B(82.9) C (34.6) D (99.5) The liquid likely to have the highest vapor pressure at 25 degrees Celsius is? the intermolecular attractive forces of these are likely to be ordered? what structural isomer is most..
salicylic acid with methanol to yield methyl salicylate why wouldnt you use a strong base like sodium hydroxide?
The 11B nucleus has a spin I of 3/2 and a nuclear g factor of 1.7920. At what field would resonance be observed at 60 MHz?
the specific heat of ethylene glycol is 2.42 J/g-K. How many J of heat are needed to raise the temperature of 62.0 g of ethylene glycol from 13.1 C to 40.5 C ?
1. Which of the following proceeds with syn addition? a. hydroboration of an alkene. b. hydrobromination of an alkene c. radical bromination of an alkane d. contra-markovnikof hydrobromination of an alkene with dialkyl peroxide initiation e. epoxi..
the ratio of the number of nuclei in the first excited nuclear energy level to the number of of nuclei for a nucleus with ε1 - ε0 = 1MeV at 25C. At what temperature is kBT on the order of ε1 - ε0. Note 1MeV = 10^6eV
Therefore, a more systematic manner of indicating stereochemistry in these systems has been developed that uses the E and Z nomenclature system. Draw the structures of the E and Z stereoisomers of 1,4-diphenyl-2-butene-1,4-dione. In this case, whi..
How many grams of oxygen are collected in a reaction where 235 mL of oxygen gas is collected over water at a temperature of 25 ^circ {rm C} and a total pressure of 704 torr?
calculate the attractive bonding forces between the different ions, (2) compare qualitative curves of bond energy vs. ion separation distance for the two compounds
Unknown Q is determined to have a molecular formula of C6H12O. Q is not optically active, and passing it through a chiral column does not separate it into enantiomers.
A 5.0 g sample of a hydrate of BaCl2 was heated, and only 4.3 g of the anhydrous salt remained. What percentage of water was in the hydrate?
How much heat is required to warm 225 g of ice from -44.1°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
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