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Purpose the structures of all of the possible stereoisomers produced by the reduction of benzil to hydrobenzoin. Draw Fischer projections of the molecules. Designate each stereogenic center as R or S. Indicate whether the molecules is chiral or achiral. Allocate the stereochemical relationship between the isomers
Define why the steric influence of the methoxy group on the substitution pattern of anisole is so different from the steric influence of the N-acetyl group on the substitution pattern of acetanilide
The vapour pressure of a substance at 20.0 oC is 49.3 kPa and its enthalpy of vaporisation is 40.6 kJ mol-1. Estimate the temperature at which its vapour pressure is 80.0 kPa
the vapor pressure of chlorine dioxide clo2 is 155 torr at 22.75 c and 485 torrat 0c. what is the standard enthalpy of
how many moles of carbon dioxide can be produced if one tablet containing 0.0119 mol sodium bicarbonate is dissolved
organic chemists rely heavily on thespectroscopic methods of ir and nmr. explain in great detail thatmeans more than 2
the titration of 40.0ml of 0.200M HONH2 (Kb=1.1 x 10-3) by 0.100 M HNO2. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added
Name four hydrocarbon types. Give 1 example for each type. Write chemical formula, structural formula and condensed structural formula for each example.
Tires in a bike have been filled to a pressure of 53.0 psi at 19.0 deg C. after riding around for a while, the volume of the tire increased by 2% & the temp was now 32 deg C. whats the new pressure in psi
A student traces of brown deposite during the KMnO4 (NH4)2Fe(SO4)2 titration and quickly add more H2SO4 and continued his titration?Suggest what wil happen and why.
what is the molar mass of gas if 0.250 g of the gas occupies 215 mL at 61 8mmHg and 30. 0C
Calculate the minimum concentration of Cr3+ that must be added to 0.095 M NaF in order to initiate a precipitate of chromium (III) fluoride. (For CrF3, Ksp = 6.6 x 10-11.)
Air is 21% by vol oxygen. Oxygen has a density of 1.31 g/l what is the volume in liters of a room that holds enough air to contain 75kg of oxygen
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