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Explain how would the enol proton signal look/behave for the equilibrium below if exchange is 1) slow relative to the NMR time scale 2) fast relative to the NMR time scale 3) between slow and fast given that Keq is 2.KeqtBu-(C-OH)=C-(C=O)-Ph <=> tBu-(C=O)-C=(C-OH)-Ph
An FM station broadcasts classical music at 89.1 MHz (megahertz, or 106 Hz). Find the wavelength (in m, nm, and A) of these radio waves. m nm A
What is the new pressure, in atm,when the air is placed in tanks that have the following volumes, if there is no change in temperature and amount of gas?
Any help on this problem would be appreciated! Not quite sure how to to use the solubility values in this problem. How can we determine the how many grams will crystallize
Neglecting any effects caused by volume changes, would you expect the ionic strength to (1) increase, (2) decrease, or (3) remain essentially unchanged by the addition of iron(III) chloride to
A) How many liters of copper sulfate solution should you prepare? B) How many grams of CuSO_4_.5H_2_O must you dissolve to make that solution?
Explain how is the pKa of a phenol different than an aliphatic alcohol. Can a phenol be deprotonated by 3 M NaOH, can aphenol be deprotonated by NaHCO3
a 10 ml pipet is calibrated by dispensing exactly 10 ml of distilled water into a flask and then weighing the water to
What is the de Broglie wavelength in cm, of a 12.9 g hummingbird flying at 1.14 102 mph? (1 mile = 1.61 km.)
question silver can be electroplated at the cathode of an electrolysis cell by the half-reactionagaq e- ? agswhat mass
Calculate the theoretical amount of CaCl2 that would be required to change the temperature of 50.0 mL of water from 20C to 45C. The heat capacity of water is given as 4.184 J/degree, and the density of water is given as 1 g/ml
Crude gunpowders often contain a mixture of potassium nitrate and charcoal (carbon). When such a mixture is heated until reaction occurs, a solid residue of potassium carbonate is produced.
gas has a volume of 0.40 L and a pressure of 6.0 atm, what is its kelvin temperature?
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