Predicting Acid-Base Reactions

The ion HC204 appears in both Examples 17.3 and 17.4, first as an acid and second as a base. It is the intermediate ion in the two-step ionization of oxalic acid, H2C2O4. The HC204 ion is amphoteric. [Pg.511]

9 Given the formulas of a potential Brpnsted-Lowry acid and a Br0nsted-Lowry base, write the equation for the possible proton-transfer reaction between them. [Pg.511]

10 Given a table of the relative strengths of acids and bases and information from which a proton-transfer reaction equation between two species in the table may be written, write the equation and predict the direction in which the reaction will be favored. [Pg.511]

Hydrogen sulfate ion, HS04 , is a relatively strong acid that holds its proton weakly. Hydroxide ion, 0H , is a strong base that attracts a proton strongly. If an HS04 ion finds an 0H ion, the proton will transfer from HS04 lo 0H [Pg.511]

Now identify the conjugate acid-base pairs. In the forward direction the acid is HSO4T Its conjugate base for the reverse reaction is 804. Similarly, 0H is the base in the forward reaction, and HOH is the conjugate acid for the reverse reaction. Let s show the acid-base roles for the different directions with the letters A for acid and B for base [Pg.511]

Predicting Acid-Base Reactions from p/fa Values... [Pg.52]

Predicting acid-base reactions from p a (Section 2.9). [Pg.21]

Drago has proposed a four-parameter equation designed to predict acid-base reaction enthalpies in the gas phase or in poorly solvating media ... [Pg.11]

Predicting Acid—Base Reactions from pKa Values 54... [Pg.1322]

Figure 172 Predicting acid-base reactions from positions in Table 17.1. The spontaneous chemical change always transfers a proton from the stronger acid to the stronger base, both shown in pink. The products of the reaction, the weaker acid and the weaker base, are shown in blue. The favored direction, forward or reverse, is the one that has the weaker acid and base as products. [Pg.511]

The following procedure is recommended for predicting acid-base reactions. [Pg.512]

PREDICTING ACID-BASE REACTIONS FROM pK, VALUES... [Pg.51]

There are several definitions of acids and bases. We are especially interested here in the Br0nsted-Lowry definition and its consequences. After reviewing definitions, we shall study the strength concept of acids and bases. It is important because it allows us to predict acid-base reactions. [Pg.52]

The Arrhenius definition can only be applied to aqueous solutions. It is not sufficiently general. However, it is satisfactory in aqueous solutions. From a quantitative viewpoint, it permits us to correctly predict acid-base reactions. [Pg.53]

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