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Problem- In the experiment of reduction of acetophenone using borohydride, we were able to confirm the formation of the product using chromic acid as a spot test.
Explain how you would be able to distinguish both the compounds (reactant and product) using (a) IR spectroscopy (b) proton NMR spectroscopy (c) and Mass Spectrometry. You cannot simply mention the differences; you must indicate a detailed explanation for each of the answers. For example, in Mass Spectrometry, you must indicate the molecular ion peaks, as well as the detailed fragmentations observed for each of these compounds. In NMR you must indicate the number of signals, their predicted chemical shift values as well as the splitting patterns. In the IR spectroscopy, you must indicate which bond vibrations would be responsible for the observed IR peaks.
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teflon is produced from the polymerization of tetrafluoroethene. write the structure of teflon showing the monomeric
Calculate the standard entropy change for the combustion of ethanol at 25 degrees C. CH3CH2OH(l)+3O2(g)----> 2CO2(g)+3H2O(g). Species S degrees CH3CH2OH(l) 160.7 O2(g) 204.1 CO2 213.7 H2O(g) 188.8
If 69. J of heat are applied to 20. g of aluminum, by how much will the temperature of the aluminum increase? (The specific heat capacity of Al (s) is 0.89 J/(g °C).)
State the symbol of a sodium ion, Na+ followed by the formula of a sulfate ion, SO42-. State the expression 147N+α, where α is the lowercase Greek letter alpha.
A solution is initially 0.050M in acetate, CH3COO- (Kb = 5.6 x 10^-10). 10.0mL of 0.10 M HCl is added. The Ka for the conjugate weak acid of CH3CHOO- is 1.8 x 10^-5. Calculate the pH for this solution at equilibrium.
at a given temperature the vapor pressures of benzene and toluene are 183mm Hg and 59.2mm Hg. Calculate the mole fraction of benzene in the vapor phase over a solution of benzene and toluene with Xbenzene=0.600
You will titrate a boric acid solution that has absorbed the ammonia from a soil sample. It is not necessary to know the exact volume or concentration of the boric acid. Explain why not
The delta G for the reaction is 2.60 kj/mol at 25 degrees C. The initial pressures are P H2 = 3.34 atm, P I2 = 0.024 atm and P HI = 0.24 atm.
What is the volume occupied by 0.265 mol of helium gas at a pressure of 1.32 atm and a temperature of 302 K.
Calcium hydroxide reacts with carbon dioxide to form calcium carbonate. The reaction for this process is: Ca(OH)2(s) + CO2(g) ? CaCO3(s) + H2O(g), ?H = -69.1 kJ What is the enthalpy change if 380 g of calcium carbonate is formed
An aliquot of a solution containing a pure beta particle emitter is counted in a liquid- scintillation counter, while an equal aliquot is evaporated and counted with a thin window G-M counter.
rank the following compounds in order of decreasing acid strength using periodic trends.1. hcl2. bh33. hbr4.
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