Dissociation yield

This means that in its molten state, K2TaF7 is significantly dissociated, yielding KF and KTaF6. 

Methane reforming with carbon dioxide proceeds in a complex sequence of reaction steps involving the dissociative adsorption/reaction of methane and COj at metal sites. Hydrogen is generated during methane dissociation In the second set of reactions CO2 dissociates into CO and adsorbed oxygen. The reaction between the surface bound carbon (from methane dissociation) and the adsorbed oxygen (from CO2 dissociation ) yields carbon monoxide. A stable catalyst can only be achieved if the two sets of reactions are balanced. 

Solutions of polyelectrolytes contain polyions and the free (individual) counterions. The dissociation of a polyacid or its salt yields polyanions, and that of a polybase or its salt yields polycations, in addition to the simple counterions. The polyampholytes are amphoteric their dissociation yields polyions that have anionic and cationic functions in the same ion and often are called zwitterions (as in the case of amino acids having HjN and COO groups in the same molecule). Such an amphoter will behave as a base toward a stronger acid and as an acid toward a stronger base its solution properties (particularly its effective charge) will be pH dependent, and an isoelectric point (pH value) exists where anionic and cationic dissociation is balanced so that the polyion s charges add up to zero net charge (and solubility is minimal). 

Reversible pyridine dissociation yields the non-Lewis base stabilized imido complex [Cp(NHAr) Ti=NAr] (54). This coordinatively unsaturated species undergoes a [2 + 2] cycloaddition reaction with allene to give an azatitanocyclobutane (55), which is then protonated to the /mamido complex. Elimination of enamine occurs followed by isomerization to the energetically more favorable imine. 

The 02Fib molecule is called oxyhemoglobin and has a bright red color. The red blood cells transport 02Fib to all cells of the body, where 02Fib dissociates, yielding up the needed O2 molecules. 

TRPD has been applied to quite a number of ion dissociations, yielding new thermochemical values as well as insight into the dissociation mechanisms of nonsimple systems. In keeping with the theme of this chapter, we will emphasize... 

Thermal dissociation yields lanthanum oxide, La203. Its reactions in aqueous solutions are those of La ion. It forms double salts with magnesium, calcium and ammonium nitrates and many other salts when mixed in stoi-chiometic amounts. Such double salts are obtained from solution mixtures on crystalhzation and may vary in their compositions. 

This energy formula [234,235] is general and suffers from no approximations in that all the appropriate bonded and nonbonded contributions are formally accommodated and because the electroneutrality requirements are met in the definition of reorganizational energy. Only dissociations yielding electroneutral products need be considered as the formation of ions, KL + L, require no more than... 

In the case of platelet-derived factor XIII, the resultant product (a )2, is the activated form. Thrombin action on plasma-derived factor XIII generates an a 2jfi2 dimer, which is devoid of transglutaminase activity. However, in the presence of Ca +, the a P chains dissociate, yielding the biologically active a 2. 

It is a bluish-violet powder, stable up to 140-5° C., but when healed above 150° C. it dissociates, yielding diammino-cupric salt and ammonia. It is soluble in water, but much water causes decomposition and precipitation of basic salts. 

Prepared in the above manner, triammino-aurous chloride is a white powder which is comparatively stable. It may be heated to 180° C. without decomposition, but above that temperature it dissociates, yielding gold and ammonium chloride. It is decomposed by water, and dilute acids cause it to lose ammonia with formation of the unstable monammino-aurous chloride. When treated with potassium hydroxide ammonia is evolved and a brown explosive substance formed. 

Fig. 2. Left Dissociation yield U for a positive chirp ( + ), no chirp ( 0 ), and negative chirp experiment (gray, left scale) and theory (light gray, right scale). Right The dissociation yield U is a steep function of negative chirp experiment (bars, left scale) and theory (open circles, right scale).

The rigorous calculation of the absorption spectrum now proceeds in exactly the same way as outlined in Section 3.1.2 [see Equation (3.14)] with the exception that the transition dipole function is replaced by the dipole function [i.e., the diagonal element of the dipole matrix defined in Equation (2.35)] because the absorption takes place in the same electronic state. Below the first threshold, the spectrum is discrete because both vibrational states are true bound states. Above the n = 0 threshold, however, the system becomes open and can dissociate yielding Ar and H2(n = 0). The spectrum is consequently a continuous spectrum with sharp resonances near the quasi-bound states temporarily trapped by the... 

The chemistry of allyloxy(methoxy)carbene (55) depends on the temperature at which it is generated.55 At 110°C, the carbene homolytically dissociated yielding mainly allylic ester. At 50 °C, the carbene dimerized and underwent a Claisen rearrangement to (56). 

Note also that within this approximation the second dissociation yields [A2-] = Ka2[HA-]/[H+] ee Ka2 2. Show that as a second approximation ... 

From the diacetate ester (Figure 7.13), an ion-molecule complex consisting of the neutral ketene and the complementary alcoholate is formed. Either this complex dissociates to yield the ethylene glycol acetate anion A, which further fragments to yield the acetate anion E, or a proton transfer from the ketene to the alcoholate occurs in the complex, which after dissociation yields the ynolate ion G. 

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