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Epimers are stereoisomers that differ only in the configuration at a single chiral center. Draw the Fischer representations of mannose and galactose, the 2-epimer and 4-epimer respectively, of glucose, and name them to describe their configurations and optical rotations (both dextrorotatory).
Assuming the volumes of all gases in the reaction are measured at the same temperature and pressure, calculate the volume of water vapor obtainable by the explosive reaction of a mixture of 725 mL of hydrogen gas and 325 mL of oxygen gas.
adding sodium hydroxyde in the purification of a solid by recrystallization experiment?
How do the competing effects of pi conjugation and steric repulsion influence the structure of 2-methylbiphenyl and 2,6-dimethylbiphenyl as compared to biphenyl?
What are the differences in the procedure that account for Sn(II) being formed in one and Sn(IV) in the other? Try to rationalize why these differences in procedure result in different products being formed
What is the minimum pH required to prevent the precipitation of SnS in a solution that is 0.0010 M Sn(NO3)2 and saturated with H2S (0.10 M)? (ksp = 1.0 x 10 ^-25 K1K2 = 1.3 x 10 ^-20)
Both iodide ion and chloride ion are in the test solution. Describe the appearance of the contents of the test tube after drops of 0.01 M Agano3 have been added and the solution has been centifuged.
Problem- Predict the ideal solubility (in terms of mole fraction) of lead in bismuth at 280 oC given that its melting point is 327 oC and its enthalpy of fusion is 5.2 kJ/mol. At this ideal solubility, what mass of lead dissolves in 1 kg of bismut..
Three common hydrocarbons that contain four carbons are listed here, along with their standard enthalpies of formation
What is the deltaH in kJ/mol of CaCl2 dissolved
The first-order rate constant for the decomposition of N2O5, 2N2O5 --> 4NO2 + O2 at 70 degrees C is 6.82 * 10 ^-3 . Suppose we start with 2.90×10?2 of in a volume of 1.7 L. A)
If 5.00 x 10^3 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?
If the partial pressure of He is 3.69 atm and that of Ar is 3.90 atm, what is the partial pressure of Ne?
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