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Look up and write the structures of D-galactose and D-mannose. How do they differ from D-glucose?
Calculate (a) the volume occupied by 8.2 mmol of the gas under these conditions and (b)an approximate value of the second virial coefficient B at 300 K.
Calculate the amount of heat required to completely sublime 68.0 g of solid dry ice CO_2 at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 kj/mol.
Methane and hydrogen sulfide form when 36g H2 reacts with carbon disulfide. calculate the percent yield if the actual yield of CH4 is 69.8 g
Derive explicitly equations for number and weight average molecular weight in a linear polycondensation reaction of A-B type monomers.
Electrolysis of molten NaCl in a Downs cell is the major isolation step in the production of sodium metal. Suppose 246 g of Na metal is formed.
A chemical reaction at equilibrium is heated, briefly, by holding it over a flame. The equilibrium is seen to shift toward the products. What can be said about the enthalpy and entropy of the reaction
If I have hydrogen peroxide, molecular weight(g/mol) is 34.02, its density (g/ml) is 1.2, its concentration is 50% by weight and I have 2mL of it how many mols would I have
What is the major organic product formed when methylmagnesium bromide, a strong nucleophile, is treated with benzaldehyde, followed by protonation with acid
what is the chemical formula for potassium
Assuming the multiple internal reflections depicted below, what is the effective path length (um) for measurements in which the sample completely covers the crystal's upper face?
Combustion analysis of 2.400 g of an unknown compound containing carbon, hydrogen, and oxygen produced 4.171 g of CO2 and 2.268 g of H2O. What is the empirical formula of the compound
what type of conalently bound compound can dissolve in water. what type of sructure and bonding is required
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