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Explain what is the mechanism for azulene with triflouroaceticanhydride? Demonstrate resonance. Water was added and hexanes and EtOAc were utilized to elute not sure if that is necessary to incorporate
A photon having E = 46.9 keV energy scatters from a free electron inside a metal. What is the maximum energy the electron can gain from the photon
Compute the initial pressure of the gas in the cylinder. b. Compute how much heat must be added to the gas in the cylinder for the spring to compress by 2cm
Manganese makes up 1.3*1-^-4 percent by mass of the elements found in the healthy male body of a certain mammal. If 0.11 g of manganese if sound, how much does the average male body weigh
When 4.21 g of a nonelectrolyte solute is dissolved in 165 mL of water at 26 °C, the resulting solution exerts an osmotic pressure of 909 torr
General Chemistry: Energy, Volume, Mass, Molarity, and Moles, Benzene is an organic solvent with the formula C6H6. It boils at 80.1 degrees celcius and melts at 5.5 degrees Celsius. Benzene's density is 0.88gm/ml; its heat of vaporization is 30.0 ..
Octane ratings are assigned to gasoline mixtures based on their ability to prevent knocking relative to isooctane. Estimate the energy released during the combustion of 1.00 mol of pure isooctane.
Lactic acid (C3H6O3) which occurs in sour milk and foods such as sauerkraut, is a weak monoprotic acid.? The pH = 0.10 M solution of lactic acid is 2.43 What are the values of Ka and pKa for lactic acid
What volume of 6.00 M sodium hydroxide in milliliters must be diluted to 232.0 mL to make a 1.50 M solution of sodium hydroxide
Each was extracted with three 5-mL aliquots of CCl4 containing an excess of 8-hydroxyquinoline. The extracts were diluted to 25 mL and their fluorescence was measured. What is the concentration of the zinc in the unknown solution?
if 32.5 grams of cao are dissolved in 212 grams of water what is the concentration of the solution in percent by
STP corresponded to conditions of "standard" temperature (T=0°C) and standard pressure (p= 1 atm). At STP, 1 L of Br2 reacts totally with 3 L of F2 to form 2 L of a product. What is the formula of the product?
A 31.0 sample of an unknown H3PO4 solution is tritrated with a 0.120M NaOH solution. The equivalence point is reached when 26.43 mL of NaOH solution is added. What is the concentration of the unknown H3PO4 solution
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