The overall reaction 2Co3(aq) + 2Cl(aq)---> 2Co (aq) +Cl2(g) has the standard cell voltage Ecell=0.46V. Given that Cl2(g) +2e -->2Cl (aq), E=1.36V, calculate the standard reduction potential for the following half reaction at 25 degrees C, Co3 +e-->Co2