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Exactly 2.00 g of an ester A containing only C, H, and O was saponified with 15.00 mL of a 1.00 M NaOH solution. Following the saponification, the solution required 5.30 mL of 1.00 M HCl to titrate the unused NaOH. Ester A, as well as its acid and alcohol saponification products B and C, respectively, were all optically active. Compound A was not oxidized by K2Cr2O7, nor did compound A decolorize Br2 in CH2Cl2. Alcohol C was oxidized to acetophenone by K2Cr2O7. When acetophenone was reduced with NaBH4, a compound D was formed that reacted with the acid chloride derived from B to give two optically active compounds: A (identical to the starting ester) and E. Propose a neutral structure for each compound that is consistent with the data. Note that the absolute stereochemical configurations of chiral substances cannot be determined from the data. Arbitrarily draw a configuration for an enantiomer (and be consistent with the derivatives); omit wedge/dash bonds for a racemate.
What volume of chlorine gas is produced when 0.952 mol of hydrochloric acid reacts completely according
how many kilojoules and kilocalories of heat are required to raise 40.0 g of water from -12 degrees Celsius to 130 degrees Celsius?
How would you distinguish between the following pairs by use of infrared spectroscopy only? Tell what absorption would be present or absent in each case. Write balanced equation for the oxidation of tolualdehyde
A cell has a standard emf of +0.116 V at 298K. What is the value of the equilibrium constant for the cell reaction if n=1, n=2, and n=3
Given the following percent composition, what is the molecular formula? 40%C, 6.7% H, 53.3% O
C.A. Yates was given a 50.0mL sample of the weak acid. The known concentration of the weak acid is .25M. After preparing a buret he delivers 25.0mL of the weak acid into a 100mL Erlenmyer flask. He then titrated this solution using a standardized ..
What is the new boiling point point of water if you add 188 grams of magnesium chloride to 1250 g of water.
a 10.00g sample of toothpaste contaning stannous fluoride gives0.145g precipitate of stannous phosphate.what is the percentage of snf2 in the toothpast sample.
When 6.40 g of CH3OH was mixed with 10.2 g of O2 and ignited, 7.50 g of CO2 was obtained. What was the percentage yield of CO2?
The activation energy for the denaturation of a protein is 391.0 kJ/mole. At what temperature will the rate of denaturation be 19 percent greater than its rate at 25.00 degrees Celsius?
Copper has two isotopes: Cu-63 (abundance = 69.2%, mass = 62.930 amu) and Cu-65 (abundance = 30.8%, mass = 64.928 amu). Calculate the (average) atomic mass of copper.
15 g of steam at 373 K is added to 250g of H2O (l) at 298 K at constant pressure of 1 bar. Is the final state of the system steam or liquid water? Calculate ?S for the process.
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