Equivalent weight of the reaction is same as its formula weight or molecular weight in case of conversion (A) Na_{2} S_{2} O_{3} int o Na_{2} S_{4} O_{6} (B) FeS O_{4} int o Fe_{2} (SO_{4}) (C) K Br into Br_{2} (D) Br_{2} int o K Br
Answers
Explanation:
For compounds that function as oxidizing or reducing agents (compounds that act as acceptors or donors of electrons), the equivalent weight is the gram molecular weight divided by the number of electrons lost or gained by each molecule—e.g., potassium permanganate (KMnO4) in acid solution, 158.038/5 g; potassium dichromate (K2Cr2O7), 294.192/6 g; and sodium thiosulfate (Na2S2O3·5H2O), 248.1828/1 g. For all oxidizing and reducing agents (elements or compounds), the equivalent weight is the weight of the substance that is associated with the loss or gain of one mole (6.023 × 1023) of electrons. The equivalent weight of an acid or base for neutralization reactions or of any other compound that acts by double decomposition is the quantity of the compound that will furnish or react with or be equivalent to 1.008 g of hydrogen ion or 17.0074 g of hydroxide ion—e.g., hydrochloric acid (HCl), 36.461 g; sulfuric acid (H2SO4), 98.078/2 g; sodium hydroxide (NaOH), 40 g; or sodium carbonate (Na2CO3), 105.9892/ 2 g.