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At first glance, it might seem possible to prepare sulfanilamide from sulfanilic acid by the set of the reactions below: 4-aminobenzenesulfonic acid to (Step 1: using PCl5) 4-aminobenzene-1-sulfonyl chloride to (Step 2: using NH3)4-aminobenzenesulfonamide.
When the reaction is conducted in this way, however, a polymeric product is produced after step 1.
What is the structure of the polymer? Why does p-acetamidobenzenesulfonyl chloride not produce a polymer?
Describe how branched-chain fatty acids affect the fluidity of membranes and rank the following fatty acids in the order of increasing solubility in water.
An organic compound was prepared and purified by chromatography. A conductivity measurement showed the compound to be a nonelectrolyte. Elemental analysis gave an empirical formula of CH3O.
What mass of Li2SO4 is formed from mixing 24.5 mL of 1.32 molar LiOH with 10.2 mL of 2.43 molar H2SO4
student performed two melting-point determination on a crystalline compound. in one determination the capillary tube contained a sample about 1-2 mm in hight and the melting range was found to be 141-142C
Given the following two solutions: 0.200 M HC2H3O2(aq) with pKa = 4.76 ; 0.200M NaOH(aq) A mixture is made using 50.0 mL of the HC2H3O2 and 25.0 mL of the NaOH. What is its pH?
The vapor pressure of water at 29 ^circ rm C is 30.0 rm torr. What is the mass percentage of aluminum in this alloy?
The rate of a first-order reaction is followed by spectroscopy, monitoring the absorption of a colored reactant at 520 nm. The reaction occurs in a 1.48- cm sample cell, and the only colored species in the reaction has an extinction coefficient of..
What is the theoretical yield (in g of precipitate) when 16.3 mL of a 0.586 M solution of barium hydroxide is combined with 18.7 mL of a 0.688 M solution of iron(III) nitrate
Provide an explanation on why the methylene unit between the two carbonyl groups is more acidic than each of the methyl groups in acetylacetone. In the reaction conditions, what is the base responsible for the deprotonation of acetylacetone
Compute the number of moles of sodium hydroxide ( NaOH ) in 23.75cm 3 of 0.150moldm -3
What causes cycloalkanes to have two less hydrogen atoms than similar alkanes that are open chain ones?
Would the following procedural errors causes an increase, a decrease, or no change in your calculated molecular weight? Indicate clearly the reasoning in each case.
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