Why are α-hydroxycarboxylic acids poor chiral modifiers for Pt in the hydrogenation of ketones?[J]. J. Catal.,2006,237(2):230-236.Maris M,Ferri D,K(o)nigsmann L,et al.Why are α-hydroxycarboxylic acids poor chiral modifiers for Pt in the hydrogenation of ketones?[J].J.Catal.,...
Alcohols and phenols are weak acids. Why don't indicators in acid-base reactions influence the pH of the solution? Is HCHO2 a strong or weak acid? Explain. What is the difference between weak acids and strong acids? Which of the following compounds is most acidic? Please Explain. ...
Fatty Acids: Fatty acid is an example of a lipid which has a hydrocarbon chain connected to a terminal carboxylic acid. It is a component of the triacylglycerol. The triacylglycerol contains one glycerol unit and 3 fatty acids. The 3 fatty acid molecules are connected to one glycerol unit by...
The study looked at the differences in the compounds between strong and weak attractors and they found that there were several different carboxylic acids that showed up more on the skin of the strong attractors than the weak attractors. Specifically, the strong attractors produced significantly higher...
The Krafft temperature for ionic surfactants increases with the increase of the chain length and for perfluorinated (those containing only fluorocarbon groups) carboxylic acids and carboxylates with 12 and more CF2 groups is higher than the room temperature [32]. As a consequence due to solubility...
processfor making silk clothing more wrinkle resistant is by bathing silk in “an aqueous solution containing a water-soluble epoxy compound in a catalyst which may be selected from alkali metal or alkali earth metal salts of dicarboxylic acids, tricarboxylic acids, and amino carboxylic acids.” ...
"When weak bases accept protons, they become strong acids." This statement is not correct. The best way to think about this question is first to remember the relationship between acid strength and the value of the pKa. Second, one has to find the pKavalues of the carboxylic acid and the...
Why do amino acids have high melting points and high dipole moments? View Solution Why do aldehydes and ketones have lower boiling point than alcohols ? View Solution Carboxylic acids do not give reactions of aldehydes and ketones why ? View Solution ऐल्डिहाइड व ...
Generally, proteins comprise essential aromatic amino acids, such as phenylalanine, tyrosine and tryptophan. These chromophore residues serve as the intrinsic fluorescent probes of plasma proteins and are highly sensitive to the local microenvironment. As such, variations in the emission characteristics of...
Why are carboxylic acids and phenols acidic? For each pair of acids, a state in which acid is a stronger acid, and briefly explain. H_2O and H_2S Why is it that when you have a strong acid and weak base, your equivalence point is less than 7?