K_(2)Cr_(2)O_(7)+FeSO_(4)+H_(2)SO_(4)rarr K_(2)SO_(4)+Cr_(2)(SO_(4))_(3)+Fe_(2)(SO_(4))_(3)+H_(2)O a) How many electrons are transferred b) What is the mole coefficient of H,30, in the above reaction?

K_(2)Cr_(2)O_(7)+FeSO_(4)+H_(2)SO_(4)rarr K_(2)SO_(4)+Cr_(2)(SO_(4))_(

1.	K_(2)Cr_(2)O_(7)+FeSO_(4)+H_(2)SO_(4)rarr K_(2)SO_(4)+Cr_(2)(SO_(4))_(3)+Fe_(2)(SO_(4))_(3)+H_(2)O a) How many electrons are transferred b) What is the mole coefficient of H,30, in the above reaction?
Answer» Solution :Change in oxidation STATE of Cr of `K_(2)Cr_(2)O_(7)` =(2x +6) -(2x+3)=6 Change in oxidation state of Fe of `FeSO_(4)=+3-(+2)=1` Cris -CROSSING the change `K_(2)Cr_(2)O_(7)-6FeSO_(4)` (a) NUMBER of electrons transferred =6 (B) `K_(2)Cr_(2)O_(7)+6FeSO_(4)+7H_(2)SO_(4) to K_(2)SO_(4)+Cr_(2)(SO_(4))_(3)+3Fe_(2)(SO_(4))_(3)+7H_(2)O` Coefficient of `H_(2)SO_(4)=7`