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1. i) Write out the mechanism for the oxime formed from 2-butanone and hydroxylamine under acid catalyzed conditions.
ii) Would you expect the product obtained in (i) above to be chiral? Give reason.
iii) The acidity of 4 carboxylic acids of benzene increase in the following order; benzoic acid < p-chlorobenzoic acid < m-chlorobenzoic acid < o-chlorobenzoic acid. Thus the most acidic is o-chlorobenzoic acid. Justify this trend.
2. a. Draw the keto-enol tautomers for phenol and say which one is more stable and why.
b. You have benzene, isopropyl alcohol, AlCl3, conc. HCl, and KMnO4, devise a synthesis with these reagents for benzoic acid.
how much heat (in KJ) is required to warm 10g of ice, initially at -10 degree celsius, to steam 110 degree celsius?
Given your knowledge of complex ion formation, what do you expect to happen to the solubility of ZnS(s) in a solution containing excess NH3?
A gaseous mixture of O2 and N2 contains 36.8 nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 545 mmHg ?
how many heat energy is required to heat a cup of water (195.0) from room temperature (25.0C) to boiling (100.0C).
Why is H2C=CHC6H5 more reactive to cationic polymerization than H2C=CHCH3? but then when we compare those same two alkenes to anionic polymerization the phenyl is still more reactive?
what is the mole fraction of hydrogen in a gaseous mixture that consists of 8.00 g of hydrogen and 12.00 g of neon in a 3.5 liter container maintained at 35.20 degrees celsius?
Explain how chymotrypsin combine different modes of catalysis( acid/base and covalent chemistry; proximity effects and transition state binding/stabalization) to acheive the rate enhancement observed for enzyme catalyzed reactions.
The density of hydrogen gas in a flask is 0.147 g/L at 305 K. what is the pressure inside the flask? Calculate the density in G/L of CH4(g) at 75 Celsius and 2.1 atm (R= .08206 L*atm/mol*K).
The reaction of fluorine of 7.6 grams with excess chlorine(Cl) produced 3.3 grams of ClF3. Determine the percent yield of ClF 3 was obtained??
The kinetic energy of the emitted electrons is measured to be 11.7 eV. What is the first ionization energy of Hg in kJ/mol? kJ/mol (d) Using this figure of ionization energies, determine which of the halogen elements has a first ionization energy ..
What is the difference between a hypothesis and a theory? a hypothesis is a proposal that has been tested extensively, whereas a theory is an initialy stated proposal a hypothesis is a conclusion made after a theory was tested words hypothesis
A 28.0-g sample of water at 260. K is mixed with 51.0 g water at 310. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings
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