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** Boiling points, solutions with two **

With simultaneous phase and reaction equilibrium the system has only two dynamic degrees of freedom (five solutes - three chemical equilibria) and therefore corresponds again to a nonreactive system with two solutes. If the dimers are taken as reference components the following definition of the transformed concentration variables is found from Eq. (6) [Pg.170]

First, the entrainer effect in dilute ternary mixture with two solutes will be considered. The following ternary mixtures for which there are solubility data (for both ternary and binary constituents [2,3,25-27]) were selected CO2 +PH + NA, CO2 +PH + benzoic acid (BA), CO2 +PH + 2,3-dimethylnaphthalene (2,3-DMN), CO2 +PH + 2,6-dimethylnaphthalene (2,6-DMN), CO2 +NA + BA, and CO2 +2,3-DMN + [Pg.117]

Number problems that need two answers or end up with two solutions have to be checked carefully. The equations used when solving these number problems frequently involve expressions relating one of the numbers to the other number using mathematical operations. [Pg.155]

The KGH equation (Eq. 39) is quadratic with two solutions. The positive solution gives the unstable mode barrier frequency [Pg.631]

Absolute value linear equations I ax + b I = c, with two solutions [Pg.182]

Potential variation over a glass membrane in contact with two solutions of different composition, one being of constant and known hydrogen-ion activity. [Pg.77]

When the values of a particular criterion associated with two solutions contained in the expert s ranked data set are close to each other, ranking of the two solutions will invariably not be based on this particular criterion. This situation may lead to a rule that will not be significant for that criterion and which may subsequently bias the final ranking process. There exist a few approaches to partly alleviate this problem [Pg.207]

A relatively simple solution to Pick s second law of diffusion is obtained when the experiment starts with two solutions of concentration c and c separated by an infinitely thin interface (dr = 0). In addition, the experiment should only be observed over such a time period that the initial concentrations remain unchanged at the top and bottom of the diffusional chamber. Integration of Equation (7-11) gives [Pg.253]

It is useful to develop a mathematical relationship between the resolution of a column and the retention factors Jtj, and ktt for two solutes, the selectivity factor a. and the number of plates N making up the column. We will assume that w-e are dealing with two solutes A and B having retention times close enough to one another that we can assume [Pg.776]

A thin sample of concrete, mortar or cement paste normally less than 10 mm thick, is placed inside suitable cells, separating chambers filled with two solutions, one concentrated upstream) and the other diluted (dovmstream) with respect to the ion to be investigated. A sketch of the set up is given in Figure 2.4. [Pg.28]

Before we begin a discussion of nucleation dturing a precipitation, we need to explain some of the intricacies of precipitation. We first start with two solutions, one containing the cation of interest and the other the anion. Both involve soluble substances like nitrates or chlorides for the cations and acids or sodium compounds (or the like) for the anions. When the two solutions are combined, a precipitate will form if its aqueous solubility, as defined by its solubility product, is less than either of the cation and/or anion solubilities. What this means is that if we use two soluble solutions and combine them, a precipitate will form if it is insoluble in the aqueous solution. There are many examples of precipitate formation. We need to define the effect of exactly how the precipitation should be carried out in terms of phosphor preparation. [Pg.168]

Cells need not necessarily contain a reference electrode to obtain meaningful results as an example, if the two electrodes in Figure A2.4.12 are made from the same metal, M, but these are now in contact with two solutions of the same metal ions, jvi but with differing ionic activities, which are separated from each other by a glass [Pg.602]

Piel et al. [109] studied the pharmacokinetics of miconazole after intravenous administration to six sheep (4 mg/kg) of three aqueous solutions - a marketed micellar solution containing polyoxyl-35 castor oil was compared with two solutions both containing 50 pM lactic acid and a cyclodextrin derivative (100 pM hydro-xylpropyl-/l-cyclodextrin or 50 pM sulfobutyl ether (SBE7)-/i-cyclodextrin. This work demonstrated that these cyclodextrin derivatives have no effect on the pharmacokinetics of miconazole by comparison with the micellar solution. The plasma concentration-time curves have shown that there is no significant difference between the three solutions. [Pg.59]

A point on an edge of the tetrahedron represents a binary system, a point within it a quaternary. On the faces ABS, BCS and ACS the solubility curves meet at points L, M and A, respectively, which represent the solvent saturated with two solutes. They are the starting points for the three curves LO, MO and NO, which denote solutions of three solutes in the solvent point O represents the solution which, at the given temperature, is saturated with respect to all three solutes. All these curves form three curved surfaces within the space model. The section between these surfaces and the apex of the tetrahedron indicates unsaturated solution, that between the surfaces and the triangular base complex mixtures of liquid and solid. [Pg.170]

For a general treatment of the various rate laws, the reader is referred to several specialized books existing on the subject [7,8]. However, care must be exercised in extrapolating the information obtained from the study of reactions in solutions to solvent extraction systems. Solvent extraction deals with two solutions in contact and in the presence of the interface, which has to be crossed by a solute during the extraction, a fact that requires special consideration. [Pg.215]

One of the most common titrations of this type is the titration of hydrochloric acid, HC1, with sodium hydroxide, NaOH. If you remember from earlier, this is a neutralization reaction. However, you should also remember from earlier that in order for a complete neutralization to occur, the reaction must use appropriate stoichiometric ratios. When we first look at the process, we will do so with two solutions of known concentration, but you will see that this process can be used to determine the concentration of one of the solutions. [Pg.337]

** Boiling points, solutions with two **

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