Oxidizing agents equivalent mass

The equivalent mass of an oxidizing or reducing agent for a particular reaction is equal to its molar mass divided by the total number of moles of electrons gained or lost when the reaction of one mole occurs. A given... 

Equivalent masses are so defined because equal numbers of equivalents of two substances react exactly with each other. This is true for neutralization because one H+ neutralizes one OH-, and for oxidation-reduction reaction because the number of electrons lost by the reducing agent equals the number gained by the oxidation agent (electrons cannot be eliminated—by the law of conservation of matter). 

Occasionally, the hypochlorites are used as the chlorinating-oxidizing agent. To determine the equivalent masses of the hypochlorites, they must be made to interact with electrons. On the basis of one electron mole. 

Equivalent masses of oxidizing agents and reducing agents react exactly with one another, since they involve the taking up or giving up of the same number of electrons. 

What fraction of the formula mass is the oxidation equivalent mass or reduction equivalent mass of each of the oxidizing or reducing agents in the equations of Exercise 11-7 ... 

The mass of a cystine-containing protein will be two mass units smaller than the equivalent cysteine-containing protein because two —SH groups are oxidized to —S—S—. To confirm this finding, it would be necessary to treat the protein with a reducing agent and compare the masses of the reduced and nonreduced samples. 

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