The molecular mass of K_(2)Cr_(2)O_(7) is 294 amu. It acts as oxidising agent in a redox titration. Its equivalent mass in acid medium will be :

The molecular mass of K_(2)Cr_(2)O_(7) is 294 amu. It acts as oxidisin

1.	The molecular mass of K_(2)Cr_(2)O_(7) is 294 amu. It acts as oxidising agent in a redox titration. Its equivalent mass in acid medium will be :
Answer» 294 49 147 74 Solution :`K_(2)overset(+12)(Cr_(2))O_(7)+4H_(2)SO_(4)to K_(2)SO_(4)+overset(+6)(Cr_(2)(SO_+(4))_(3)+4H_(2)O+3[O]` Change in oxidation number = 6 EQUIVALENT mass `=("Molecular mass")/(6)=(294)/(6)=49`