Analytical Chemistry

then equation (5.25) gives which is the criterion for a coincident end point and equivalence point, and an indicator must be sel ...

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EDTA Titration Procedures If the analyte metal ion forms a stable EDTA complex rapidly, and an end point can be readily detected ...

Table 5.10 Some examples of EDTA titration methods Analyte and matrix Outline procedure Ca and Mg in water (water hardness) Ca d ...

Table 5.11 Some additional aminocarboxylic acid ligands provides the basis for their direct titration. Excess silver ions react ...

limited number of purposes, such as the determination of halides, these methods are invaluable. Silver nitrate is the most widel ...

Apparatus Flasks, beakers, filter funnels, pipettes, filter crucibles, filter papers, oven, muffle furnace, chemical balance, de ...

Table 5.14 Some inorganic precipitants Reagent Analyte and form precipitated Analyte form weighed NH 3 (aq) Be hydrous oxide BeO ...

the effect of potassium nitrate on the solubility of barium sulphate. The common ion effect (Chapter 3) is a further important f ...

Table 5.15 Some organic precipitating agents The net result of the three factors discussed above is that frequently an optimum ( ...

Figure 5.7 The effect of ionic strength on the solubility s of BaSO 4. In other cases where solute ions react with OH– or H 3 O+ ...

oxalates of calcium and magnesium for instance, both compounds have fairly low solubility products (2.3 × 10 –^9 mol^2 dm–^6 for ...

result, whereas a predominance of particle growth will form a more tractable precipitate. From the practical standpoint, the dif ...

Table 5.16 The major types of coprecipitation and their relation to the precipitate type Type of coprecipitation Mode of contami ...

Table 5.17 Practical gravimetric procedures Stage Practical manipulations Remarks sample pre-treatment dissolution of sample, se ...

Table 5.18 Some homogeneous precipitation processes minimum solubility. The presence of ammonium salts and hydrogen ions increas ...

aqueous solutions between pH = 4.2 and pH = 9.8. Due to the non-selective nature of Oxine as a reagent many other metals are als ...

(6) Calculate the conditional formation constant for the Zn–EDTA complex at pH 9.0 in a solution 0.100 M with respect to ammonia ...

6 — Electrochemical Techniques If a solution forms part of an electrochemical cell, the potential of the cell, the current flowi ...

Table 6.1 Typical half-cell reactions Reductions Oxidations deposition of metals e.g. Ag+ + e– = Ag^ formation of hydrogen gas 2 ...