In the reaction
`2CuSO_(4)+4KI rarr 2Cu_(2)I_(2)+I_(2)+2K_(2)SO_(4)` the equivalent weight of `CuSO_(4)` will be:

All titration which involves the direct titration of Iodine with a reducing agent are grouped under lodimetry. Iodimetry is employed to determine the strength of reducing agent such as sodium thio sulphate I_(2) + 2Na_(2)S_(2)O_(3) rarr 2I^(-)+S_(4)O_(6)^(-) If iodine is liberated as a result of chemical reaction involving oxidation of an idodide ion by a strong oxidizing agent in neutral or acidic medium the liberated iodine is then titrated with reducing agent. This titration is called lodometry. Todometry is used to estimate the strength of oxidizing agent. For example the estimation of Cu^(++) with thiosulphate. Cu^(+ +) +I^(-) Cu_(2)I_(2)+I_(2) , I_(2) +S_(2)O_(3)^(-) rarrS_(4)O_(6)^(-) +I^(-) Starch used as indicator near the end point which form blue colour complex with I_(3)^(-) . The blue colour disappears when In the reaction, 2CuSO_(4) +4KI rarr Cu_(2)I_(2) + 2K_(2)SO_(4)+I_2 the ratio of equivalent weight of CuSO_4 to its molecular weight is:

ln the reaction, 2CuSO_4+ 4KIrarrCu_2l_2+2K_2SO_4+I_2 the ratio of equivalent weight of CuSO_4 to its molecular weight is :

2KI+CuSO_(4) to CuI darr+(1)/(2)I_(2)+K_(2)SO_(4)

CuSO_(4)+2KI to CuI darr+(1)/(2)I_(2)+K_(2)SO_(4)

2KI+CuSO_(4) to CuI darr+(1)/(2)I_(2)+K_(2)SO_(4)

CuSO_(4)+2KI to CuI darr+(1)/(2)I_(2)+K_(2)SO_(4)