Twitter Google Share on Facebook PKA Dictionary Medical Acronyms Wikipedia PKA [¦pē¦kā′ā] (cell and molecular biology) cyclic AMP-dependent protein kinase (physics) primary knocked-on atom McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill...
So.. the closer to 0 or 1 Ka is the stronger the acid and when you take pka =-log Ka.What i don t know is:Since pka plus pkb equals 14 and ph and poh equals,again , 14What if ph is equal to pka ?What if ph is smaller than pka?What if ph is bigger than pka? Logged ...
In addition to using pKa to gauge the strength of an acid, it may be usedto select buffers. This is possible because of the relationship between pKa and pH: pH = pKa+ log10([A-]/[AH]) Where the square brackets are used to indicate the concentrations of the acid and its conjugate b...
The relationship between partition and distribution coefficients at a given pH can be computed via [82, 83] log DpH = log P − log 1 + 10pKa−pH (15) for bases (if no deprotonation site is present or if pKb 0.4 to test set molecules. Several models were built using a Directed...
Knowledge of PKA kinase-substrate relationship is thus essential to fully understand cellular signaling in both health and disease. To determine if PKA is involved in a given cellular process, many investigators have relied on the use of small molecule kinase inhibitors. One such inhibitor is N-[...
1.On the elemental electronegative,bondid electron number and pz eletron number of atoms,one new molecular topological index (4X) is developed for research on the Pka values for 21 substituted phenols and the Pkb values for 22 substituted benzenne amines in this paper.结果表明,4X具有良好的结构...
pKbvalueswerecalculated.andtheyweresubstitutedintothefitted1inearparametricequation.itwasfoundthatthe computedresultswereveryclosetosubstitutedpyridinepKavaluepredictedbythepopularsoftwareACD—Labs6.0. Keywords:Densityfunctionaltheory;Substitutedpyridine;Naturalatomicorbitalscharge;PKa ...
结果表明,4X具有良好的结构选择性和性质相关性,可用于预测其它取代酚酸性PKa值和取代苯胺碱性PKb值。 更多例句>> 3) pKa value pKa值 1. OBJECTIVE The solubility in different solvents,the oil/water detached coefficient and pKa value of genistein were determined for the study of its absorption in viv...
Question: Rank from best acid (low pKa) to worse acid (high pKa). Acid: Acids are the substance that can provide {eq}{{\rm{H}}^{\rm{ + }}} {/eq} ions or receive an electron pair. The reactivity of the conjugate base shares an inverse relation with acid's strength. Lower the...
The acid in vinegar has a pKa value of 1.85 x 10^-5 at 25 degrees C. Find the pKb value of its conjugate base. What are the steps and formulas to calculate pK_a or pK_b values for weak acids or bases. What hydrogen atoms in the given compound have a pKa less ...