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Write down a suitable mechanism for the cleavage of butyl isopropyl ether with the HI at 100 degrees C to produce the exclusively 1-iodobutane and isopropyl alcohol. Discuss why isopropyl iod
Determine the mole fraction of sulfuric acid in an aqueous solution which is the 4.00 M sulfuric acid, where the density of the solution is 1.250 g/ml.
Explain what product would you expect to obtain from reaction of one equivalent of propane with phthalicanhydride?
In an experiment a point is made that the formation of the a zoo compound is a slow reaction, but that the rate is increased by raising the ph of the solution. Why is this necessary? In other words,
Methyl Orange is an acid-base indicator. In dilute solution at ph greater than 4.4, it is yellow. Illustrate a structure of the species that is formed at the lower ph of the acid proton adds to the
Why is nodiacetylferrocene produced in which both acetyl groups are on the same aromatic ring? In the formation of diacetylferrocence, the product is always the one in which each ring is monoacetylate
When using TLC plates how you do pick out the best solvent? For example: Match the appropriate solvent out of ethylene chloride, hexane, and acetone for each of the following: 2-phenylethanol, brom
Why are these molar volumes slightly less than the ideal molar volume, 22,4L/mol when the molar volume for HCl and CO2 are 22,262L/mol and 22,262L/mol, respectively?
Calculate the number of valence electrons for the molecules NH3, CH4 and H2O by adding up the valence electrons for the constituent atoms. Calculate the numbers of -bonds and the number of lone elec
Explain what is meant by the polarity of molecules? Explain what causes differences in polarity? Illustrate the structural formula of isopropyl alcohol. Discuss how it differs in polarity from the wat
A 0.1247 g sample of ascorbic acid, Vitamin C, was burned in a carbon-hydrogen combustion apparatus to form the 0.0510 g of water and 0.1869 g of carbon dioxide.
Calculate the molecular formula for this compound. Determine the numbers of moles of hydrogen atoms are in one mole of molecules (or equivalently discuss how many hydrogen atoms are in one molecule)
If it took 7.85 of a.102 M H2SO4 to reach the equivalence point, given a 10.0 mL sample of an unknown Ba (OH)2 solution.
Discuss why p-nitro phenol is a stronger acid than the phenol itself. Would p-methoxyphenol be a stronger or weaker acid than phenol? Explain.
Explain what percentage of hydrogen is present in a 2-g sample of hydrogen chloride? A 1-g sample of the compound hydrogen chloride was determined and found to be 97.3 percent chloride and 2.
Make sure in the first case, the t-butyl group and the ethyl group are cis to each other and the vinyl group is trans to these two groups. "There are two stereoisomers of1-t-butyl-
A mixture of 25% hydrogen and 75% propane is burned with the 25% excess air. Fractional conversions of 85% of the hydrogen and 90% of the propane are achieved; of the propane that reacts, 95% reacts
Determine the mass percent of sulfuric acid in the original battery acid sample (assume sulfuric acid completely ionizes both protons in this solution)
What effect does the ph of the solution have on the reactivity of the phenol? In this reaction, diazonium salts couple with phenols in slightly alkaline solution.
How high would it go in comparison to the tennis ball if the same amount of energy were imparted to a ball the same size as a tennis ball, but of twice the mass.
20.00 mL of 0.100M NaOH and 20.00 mL of 0.100M acetic acid was added to 20.00 mL of 0.100M acetic acid and 20.00 mL of distilled water with a pipette in a 100 mL beaker and buffer solution was forme
Determine the emission wavelengths of hydrogen in the visible region, for all possible transitions where a transition is only "possible" to see in the visible region if the wavelength falls within
Determine the buffer capacity of a solution that is 0.10 M in sodium acetate and 0.10 M in acetic acid? Buffer capacity is defined as the number of moles of a strong acid or strong base tha
Discuss how much we should decrease the pressure if we want to boil ethanol at the 298K in a distillation when the regular boiling point of clean ethanol is 78.3oC. At this temperature it has been f
If the tunneling current is to be decreased by a factor of 3, determine how much farther away must the tip be moved from the sample?