Equivalent weight of an acid

Equivalent weight of an acid. Determine the equivalent weight of the acid (use about 0 2 g.) by titration with standard ca. 0- N alkali... 

The equivalent weight of an acid in an acid-base neutralization reaction is defined as the formula weight divided by the number of hydrogens lost per formula of the acid in the reaction. Acids may lose one or more hydrogens (per formula) when reacting with a base. 

As in Section 4.3, acid-base neutralization reactions will be illustrated here. In order to calculate the equivalent weight of an acid, the balanced equation representing the reaction in which the solution is to be used is needed so that the number of hydrogens lost per formula in the reaction can be determined. The equivalent weight of an acid is the formula weight of the acid divided by the number of hydrogens lost per molecule (see Section 4.3). 

Equilibrium diagrams, 22-26 construction of, 26-29 Equivalent weight of an acid, 1071 Ester-amides, table of, 425 Esterification, 379 -382, 1000, 1001 Esters, hydroxamic acid test for, 1062, 1063 ... 

The equivalent weight of an acid or base is the mass of the acid or base in grams that reacts with or contains one mole of protons. Thus, the equivalent weight of KOH (56.11 g/mol) is its molar mass for Ba(OH)2, it is the moiar mass... 

The equivalent weight of an acid is that weight of the pure material that contains one mole of titratable protons in a specified reaction. The equivalent weight of a base is that weight of a pure compound that consumes one mole of protons in a specified reaction. 

By definition there are 1000 milliequivalent weights (meq) in one equivalent weight of an acid or base. Normality may also be represented as... 

The equivalent weight of an acid is the number of parts by weight of the acid containing one part by weight of replaceable hydrogen. Hence,... 

Gram equivalent weight of an acid Gram-equivalent weight of a base Gram-equivalent weight of a salt... 

Normality is another unit of concentration that is sometimes used, especially when dealing with acids and bases. The use of normality focuses mainly on the H and OH" available in an acid-base reaction. Before we discuss normality, however, we need to define some terms. One equivalent of an acid is the amount of that acid that can furnish 1 mol ofH ions. Similarly, one equivalent of a base is defined as the amount of that base that can furnish 1 mol ofOH ions. The equivalent weight of an acid or a base is the mass in grams of 1 equivalent (equiv) of that acid or base. 

What is one equivalent of an acid What does an equivalent of a base represent How is the equivalent weight of an acid or a base related to the substance s molar mass Give an example of an acid and a base that have equivalent weights equal to their molar masses. Give an example of an acid and a base that have equivalent weights that are not equal to their molar masses. What is a normal solution of an acid or a base How is the normality of an acid or a base solution related to its molarity Give an example of a solution whose normality is equal to its molarity, and an example of a solution whose normality is not the same as its molarity. 

The equivalent weight of an acid is the amoimt of acid that can... 

The acidity of carboxylic acids enables ready determination of the equivalent mass or neutralization equivalent of the acid by titration with standard base. The equivalent weight of an acid is that mass, in grams, of acid that reacts with one equivalent of base. As an example, suppose that 0.1000 g of an unknown acid requires 16.90 mL of 0.1000 N sodium hydroxide solution to be titrated to a phenolph-thalein endpoint. This means that 0.1000 g of the acid corresponds to (16.90 mL) (0.1000 equivalent/1000 mL) or 0.0016901 equivalent of the acid, or that one equivalent of the acid weighs 0.1000/0.00169 or 59.201 g. Thus the following expression applies ... 

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