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Predict the proton NMR spectrum expected for CH3CHBrCH3. Indicate the proton responsible for the observed peak. Sketch the spectrum.
Consider a sample of helium gas at 28 C with a volume of 3.80 L at a pressure of 3.15 atm. The gas expands to a volume of 9.50 L and the gas is heated to 43 C
The following is a first order reaction with a rate constant of 2.98*10>-3s-1: SO2CL2>>>>SO2+CL2. What is the half life for the reaction?
Caffeine is made up of 49.5% C, 5.2% H, 16.5%O, and 28.9% N. A solution made up of 8.25g of caffeine and 100.0 of benzene (d=0.887g/ml) freezes at 3.03C.
How many grams of dry NH4Cl need to be added to 1.50 L of a 0.300 M solution of ammonia, NH3, to prepare a buffer solution that has a ph of 8.73? pkb for ammonia is 1.8X10^-5.
A mass of 46 g of solid sodium reacts with 38 g of flourine gas to produce 84 g of sodium flouride, Na F.
A drop of NaOH titrant adheres to the side of the buret (due to a dirty buret) between the initial and final reading for the titration. As a result of the "clean glass" error, will the molar concentration of the NaOH be reported too high or too lo..
.134 mole of KCl and .212 mole of CaCl2 were dissolved in water, calculate total number of Cl ions in the solution
Unknown compound A (C8H12) is reacted with H2 (excess) in the presence of a palladium catalyst forming compound B (C8H16). In addition when compound A is reacted with O3 followed by zinc and acetic acid the following two compounds are formed
the osmotic pressure at 20.0 degrees C is 3.62x 10^-3 atm. What is the molar mass of the protein hemoglobin?
At the start of the experiment, both thermometers record the same temperature. Why does, after 10 min, thermometer B record a lower temperature than thermometer A?
Assume that the maximum number of ATP's is produced (38). At pH 7, and in the presence of excess Mg2+
If 975g of copper is heated from 20 degrees C to 80 degrees C what amount of heat is absorbed?
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