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Hydrolysis of (R)-3-methyl-3-bromohexane under appropriate conditions produces a racemic mixture of (R)- and (S)-2-methyl-2-hexanol. Define how this mechanism leads to racemisation. Propose a name for the mechanism that is operating here as well as explain the meaning of the term racemic
what is the diffrence between anatomical theory of diease, humoral concept of diease, and germ diease.
How to tell if a compound is polar or non-polar when looking at its structure? Please answer in simple words rather than a whole bunch of scientific terms.
list three acid, bases, and salt commonly used in therapeutic processes.
Ozonolysis of A followed by dimethyl sulfide reduction produces a single optically active compound C, C5H8O2. Reduction of C with ethereal LiAlH4 affords optically active compound D (C5H12O2) of the (S)-configuration. The 13C NMR spectrum of D is ..
Draw four structures corresponding to dihedral angles of 0, 60, 120 and 180 degrees. Clearly indicate the best and worst in this set.
What molar ratio of sodium acetate to acetic acid should be used to prepare a buffer with pH = 4.5? Ka acetic acid = 1.8 x 10-5.
What units do chemistry normally use for density of liquids and solids? for gas density? Explain the differences
Benzene is an organic liquid that freezes at 5.5 degrees celsius. how much heat is evolved when 25.5g of benzene freezes at 5.5 degrees celcius. (the molar heat of fusion is 9.94kJ/mol and the molar mass of benzene = 78.0g/mol)
Why is the intercept of a calibration curve of absorbance vs concentration not zero?
What would be the pH of a buffer system containing 1.0 M NH3 and 0.10 M NH4Cl. (Kb(NH3) = 1.8 x 10-5)
By substituting two hydrogen atoms on the benzene ring with methyl groups, write line-angle formulas of all constitutional isomers. Name each isomer.
A sample of hydrogen has a volume of 582mL when the temperature is 48.6 deg C as well as the pressure is 1.116 atm. Explain what will be the volume of the gas at STP
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