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Exhaustive methylation of a trisaccharide followed as a result of acid hydrolysis yields equimolar quantities of 2,3,4,6-tetra-O-methyl-D-galactose, 2,3,4-tri-O-methyl-D-mannose, also 2,4,6-tri-O-methyl-D-glucose. Treatment of the trisaccharide with beta galactosidase yields D-galactose and a disaccharide. Treatment of this disaccharide with alpha mannosidase yields D-mannose and D-glucose. Depict the structure of the trisaccharide and state its systematic name.
Which is the stronger base, HSO4- or H2O? b. Which is the stronger base, H2O or OCl-?
Molecular formula of a compound and Deduce from these data the corresponding equation and write formulas for the oxide and sulfate of M .
an unknown solid salt is dissolved in water to form a solution. describe one chemical and one physical way that the
What is the pH of a solution made by dissolving 46g of acetic acid in enough water to make 700 ml of solution
the anharmonicity constant is 117.90 cm^-1. Calculate the frequency at which the Q branch for the first overtone will be found.?
If the Ka of a monoProtic weak acid is 5.3*10^6 what is the Ph of 0.15 M solution of this weak acid
the specific heat of liquid bromine is 0.226 jg-k. how much heat j is required to raise the temperature of 10.0 ml of
What is the Hydroperoxide formed by air oxidation of diethyl ether. Show Lewis Structure.
Why is HC2H3O2 not a good conductor or strong electrolyte?
The total phosphate concentration is 0.001 M. No other weak acids or bases are present. How many millimeters of 0.5 M H2SO4 are needed to decrease the pH of 1 liter of this water to 6.0
what precipitate would form if calcium chloride, 5% dextrose, 0.9% sodium chloride, and potassium phosphate
Use heat of formation data to determine H for the combustion of hydrogen sulfide according to the following reaction: 2 H2S(g) + 3 O2(g) ? 2 SO2(g) + 2 H2O(?) ?H = ? ?Hfo for compounds:
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