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Propose a structure for a C6H15O2N compound that is unstable in aqueous acid and has the following NMR spectra: 1H NMR: ? 2.30 (6H, s); ? 2.45 (2H, d, J = 6 Hz); ? 3.27 (6H, s); ? 4.50 (1H, t, J = 6 Hz) 13C NMR: ? 46.3, ? 53.2, ? 68.8, ? 102.4
Draw the skeletal structure of the organic species containing the carbonyl functionality needed to form 3-ethyl-1-pentanol upon metal-catalyzed hydrogenation.
what fraction of the radioactivity will appear as CO2 during the first 2 turns of the TCA cycle? Draw the structure of OAA and indicate its labeling pattern after the second turn of the TCA cycle.
What mass of sucrose should be combined with 461g of water to make a solution with an osmotic pressure of 8.80 atm at 280 K
Describe how you can use titration to determine the molar mass of an unknown acid, by giving a specific example and showing a sample calculation.
What mass of carbon dioxide is produced from the complete combustion of 6.50×10-3 of methane?
A 15.0 g piece of iron (Cp = 25.09 J/mol-C) is heated to a temperature of 47.0 ?C and then placed in contact with a 275 g piece of copper at 20.0 ?C (Cp = 25.46 J/mol-C). What was the final temperature of the two pieces of metal?
In the citric acid cycle, how many net atp are generated between alpha-ketogluturate and malate
Crime scene investigators keep a wide variety of compounds on hand to help with identifying unknown substances they find in the course of their duties
What volume (in mL) of water must be added to a 1.96 M solution of potassium hydroxide to make a 50.8 mL of a 0.625 M solution? Assume the volumes are additive.
The vapor pressure of chlorine dioxide (ClO2) is 155 Torr at 22.75 C and 485 Torrat 0C. what is the standard enthalpy of vaporization?
what is a good conductor at high temperature and a poor conductor at low temperature? YBa2Cu3O7 GaAs S Cu
naturally occurring isotopes, Re-185 (mass = 184.935 amu) and Re-187 (mass = 186.956 amu). Calculate the percent abundances of the isotopes of rhenium.
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