Concentration of a strong acid

It must be realized that the acidity of an acidic solution, expressed by its pH, is a physico-chemical property, which in fact (see calculations on pp. 83-85) represents a resultant of the identity and concentration of the acid even the overall pH height of the titration curve is still influenced by the concentrations of a strong acid, but for a weak acid that curve height, especially its h.n.pH value, forms a fairly reliable identity indication. 

If the concentration of a strong acid or strong base is equal to or greater than 10 6 M, the second term of the right-hand side of Equation (2.5) is negligible compared to the initial concentration of the strong acid or strong base ... 

The chain-growth polymerization of Eq. (5-5) actually represents a sequence of monomer reactions which is initiated by a small concentration of a strong acid ... 

Very dilute solution -> Concentration of a strong acid or base is less than 10 m. 

Conductivity, direct absorbance or a differential refractometer is the most common form of detection for lEC. Both non-suppressed and suppressed conductivity have been used extensively. The need to incorporate a low concentration of a strong acid into the eluent has been an impediment to direct conductivity detection. 

When the concentration of a strong acid is not substantially higher than 1.0 X 10 M, the ionization of water must be taken into account in the calculation of the solution s pH. (a) Derive an expression for the pH of a strong acid solution, including the contribution to [H ] from H2O. (b) Calculate the pH of a 1.0 X 10 M HCl solution. 

The concentration of a strong acid catalyst added to the reaction mixture for polyesterification remains constant throughout the course of polymerization. For the reversible polyesterification (as in a closed batch reactor) represented by... 

Figure 8-3 Calculated pH as a function of the concentration of a strong acid or strong base dissolved in water. 

Calculating concentrations of HjO" and OH in solutions of a strong acid or base Given the concentration of a strong acid or base, calculate the hydronium-ion and hydroxide-ion concentrations. (EXAMPLE 16.4)... 

Sample Problems 16.8 and 16.9 let you practice relating the concentration of a strong acid to the pH of an aqueous solution. 

The basic reason is the protonation of the and OH ligands. Note that beyond pH = 3, the solubility product is reached. Also, note that in order to carry out these calculations, it is not necessary to use the charge balance relation. Indeed, one liberty degree remained the concentration [H+]. However, the use of this relation would be necessary to calculate the concentration of a strong acid—whose anion would not complex gadolinium—necessary to reach a given pH value. This relation is... 

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