1 What is the E_cell for this cell?

C(s) / H₂O₂(aq) / O₂(g) // MnO₄^-(aq) , Mn²⁺(aq) / C(s)

E°(O₂/H₂O₂) = 0.68 V
E°(MnO₄^-, Mn²⁺) = 1.51 V

Ecell	=	ERHE	-	ELHE
	=		-
	=

2 What is the E_cell for this cell?
Zn(s) / Zn²⁺(aq) // Fe³⁺(aq) , Fe²⁺(aq) / C(s)
E°(Zn²⁺/Zn) = -0.76 V
E°(Fe³⁺, Fe²⁺) = 0.77V

Ecell	=	ERHE	-	ELHE
	=		-
	=

3 What is the E_cell for this cell?
Ni(s) / Ni²⁺(aq) // Ba²⁺(aq) / Ba(s)
E°(Ni²⁺/Ni) = -0.23 V
E°(Ba²⁺/Ba) = -2.90 V

Ecell	=	ERHE	-	ELHE
	=		-
	=

4 What is the E_cell for this cell?
Pt(s) / H₂(g) / H⁺(aq) // O₂(g) / OH^-(aq) / Pt(s)
E°(H⁺/H₂) = 0.00 V
E°(O₂/OH^-) = 0.40 V

E_cell =

5 What is the E_cell for this cell?
Mg(s) / Mg²⁺(aq) // Zn²⁺(aq) / Zn(s)
E°(Zn²⁺/Zn) = -0.76 V
E°(Mg²⁺/Mg) = -2.36 V

E_cell =