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Compound u is an aldotertrose that can be oxidized to an optically active aldaric acid, compound v. Upon Wohl degradation, compound u is converted into D-glyceraldehyde. Upon Kiliani-Fisher chain extension, compound U is converted into compounds W and X. Compound W can be oxidized to an optically in active aldaric acid, compound y, but compound x is oxidized to an optically active aldaric acid Z. What are the structures of U through Z?
Air at 25°C and 100 kPa has a dew point of 16°C. If you want to remove 50% of the initial moisture in the air (at a constant pressure of 100 kPa), to what temperature should you cool the air
Arrange the following substances in order of increasing strength of intermolecular forces: H2O, He, I2, and N2.
What is the molar solubility of PbI2 in water? For PbI2, Ksp=7.9x10-9. You may assume that the ions do not form ion pairs in solution. Give your answer in moles per litre, accurate to two significant figures
When a solution of hydrogen peroxide (H2O2) is put on a cut, it bubbles, producing water and oxygen gas. If someone puts 0.54 mL of a 3.00% hydrogen peroxide solution on a cut, what is the volume in mL of oxygen produced?
draw the orbital diagram for ru. follow both hunds rule and paulis exclusion
What is the wavelength (in nm) of the photon absorbed for a transition of an electron from n_initial=1 that results in the least energetic spectral line in the ultraviolet series of the H atom
The standard molar enthalpy and entropy of the denaturation of a certain protein are 512 kj/mol and 1.60 kj/K mol.comment on the signs and magnitude of these quantities , and calculates the temperature at which the process favors the denatured sta..
the addition of 6 g of salt to a sample of pure water causes its freezing point to be reduced from 0degc to -1.5degc.
10.00mL aliquots of an unknown containing element X was mixed with aliquots of a standard solution of element X for atomic absorption. The standard solution contained 1786.50ug X/mL.
Dissolve a compound with a molecular mass of 272.05 in a 10-mL volumetric flask. You remove a 1.00-mL aliquot, place it in a 25-mL volumetric flask and dilute it to the mark.
Calculate the systematic treatment of equilibrium. Remember C2O4^2- is a weak base so you must consider other equilibria. (Ksp(ZnC2O4)=7.5X10^-9, Kb1=1.8X10^-10, Kb2=1.8X10^-13). Solve using systematic treatment of equilibrium.
When ammonia is added to nickel ions in aqueous solution, the water molecules bound to the Ni2+ are replaced by ammonia molecules.
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