Para-nitrophenol is more acidic than phenoldue to the presence of an electron withdrawing group, -NO2group, which enhances the acidic strength of the compound by stabilizing the phenoxide ion and the ortho- and para-positions in the benzene ring becomes electron rich. Which is more acidic c6h...
Solutions of acidic substances have a low pH of less than 7 while...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough homework and study questions. Ask a question Search AnswersLearn more about this ...
Determine the oxidation state and coordination number of the metal ion in each complex ion. a.[Cr (H_2O)_6]^3+ b.[Co (NH_3)_3 Cl_3]^- c.[Cu (CN)_4]^2- d.[Ag (NH_3)_2]^+ Complete and balance the following redox equation that occurs in acidic solution. What is the ...
如图甲所示，光滑平行金属导轨MN、PQ所在平面与水平面成θ角，M、P两端接一阻值为R的定值电阻，阻值为r的金属棒ab垂直导轨放置，其他部分电阻不计，整个装置处在磁感应强度为B的匀强磁场中，磁场方向垂直导轨平面向上，t=0时对金属棒施一平行于导轨的外力F，金属棒由静止开始沿导轨向上运动，通过R的感...
Enteric Gram-negative bacteria utilize an intricate acid resistance system for self-protection when pass- ing through the highly acidic mammalian gastric environment (pH 1–3)1–3. Due to the permeability of bacterial outer membrane, periplasmic proteins are quickly exposed to low pH during acid ...
2ClO2+H2O2+2NaOH→2NaClO2+O2+H2O (1) In view of this point, the direct use of chlorine dioxide gas in oxidizing NO is considered to be more reasonable because it can solve not only the problem of cost but also the problem of pH adjustment. Thus, the present invention comprises ...
Schofield’s group studied the nitration of several aromatic species using nitric acid in acidic media (sulphuric and perchloric acids). They found that the rates of nitration of aromatics more reactive than benzene reach a limit, which for alkylbenzenes is already achieved when two methyl groups...
Moreover, the strains propagated in varying fashion to different tissues and formed different intestinal lesions. The coronavirus spike protein consists of S1 and S2 subunits [27], of which the former binds putative cellular receptors such as aminopeptidase N and sialic acid, whereas the latter ...
One can assume Arg1 to provide conformation of pore loop that allows acidic side chains of Glu651 and Glu648 to interact firmly (−43.10 kcal/mol) with the extracellular loop 3 through Lys622. At the same time the Gly2 backbone forms hydrogen bond with Cys621 of the same receptor ...