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Organic chemistry mechanism and conceptual problems involvin
1. Write equations to show how nitronium ions might be formed using a mixture of nitric and sulfuric acids.
3. Give a reasonable explanation of why nitration of 1,4-dichloro-benzene yields the mononitro derivative while N,N'-diacetyl-,4-phenylenediamine forms the dinitro compound.
4. Explain why p-nitrophenol is a stronger acid than phenol itself. Would p-methoxyphenol be a stronger or weaker acid than phenol? Explain.
12. 2,3-Dimethyl-2,3-butanediol (pin a co/) , upon heating in aqueous acid, rearranges to form 3,3-dimethyl-2-butanone (pinacolone). Suggest a mechanism for this reaction.
what volume will a 300.0 mL sample of gas at STP occupy when the pressure is doubled at constant temperature
If 125 calories of heat is applied to a 60.0 grams piece of copper at 21.0 degrees Celsius, what will the final temperature be? The specific heat of copper is 0.0920 calories per grams times Celsius.
An oil bath maintained at 50.5oC loses heat to its surroundings at the rate of 4.68 kJ/min. Its temperature is maintained by an electrically heated coil with a resistance of 60 operated from a 110 V line.
if you have 430.00 ml of water at 25.00 degrees celcius.and add 100 ml of water at 95.00 degrees celcius, what is the final temperature of the mixture?
Calculate the molar concentration of OH- ions in a 7.5×10^-2 M solution of ethylamine C2H5NH2(Kb = 6.4x10^-4).
A sample of ethanol (C2H5OH) has a mass of 43.8 g.(a) How many carbon atoms does the sample contain?
Using phosphoric acid, what concentrations are needed to give a pH 8.10 solution with an ionic strength of 0.100 M?
Determine the mass in gms for pure Ag sample that loses 2.88kJ if its temperature drops from 143 degree celsius to 28 degree celsius.?
A piece of metal of mass 27 g at 99?C is placed in a calorimeter containing 45.1 g of water at 21?C. The final temperature of the mixture is 38.7?C.
how much of this chemical would have been measured? Express in terms of measured concentration C (mg/litre) of the filtered sample?
Standard Electrode Potential (E), a) Write the equation for the cell reaction and indicate cathode and anode half-cells for the electrochemical cell formed from Mg/Mg2+ half-cell and In/In3+ half-cell.
Number of Moles and Conversion, a) Number of moles of carbon atoms in 0.585 moles C4H10
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