Oksido redukcija

Submitted by DanicaDana on Tue, 03/11/2014 - 11:45
DanicaDana's picture
Forums: 
Opšta diskusija

K2Cr2O7+H2S+H2SO4 ---> Cr2(SO4)3+S+KHSO4+H2O

milicaradenkovic's picture

milicaradenkovic - Tue, 03/11/2014 - 13:24

K2Cr2O7+3H2S+5H2SO4---------------------->Cr2(SO4)3+3S+2KHSO4+7H2O

Cr6+(+3e-)----------------------->Cr3+/2

S2-(-2e-)--------------------------->S0/3