A common shorthand way to represent a voltaic cell isanode& anode solution& & cathode solution&cathodeA double vertical line represents a salt bridge or a porousbarrier. A single vertical line represents a change in phase,such as from solid to solution. (a) Write the half-reactionsand overall cell reaction represented by Fe| Fe2+ || Ag+ |Ag;calculate the standard cell emf .(b) Write the half-reactions and overall cell reaction representedby Zn| Zn2+ || H+ |H2; calculate the standard cell emf and use Pt for the hydrogen electrode.(c) Using the notation just described, represent a cellbased on the following reaction:ClO3-(aq) + 3 Cu(s) + 6 H+(aq) --->Cl-(aq) + 3 Cu2+(aq) + 3 H2O(l)Pt is used as an inert electrode in contact with the ClO3-and Cl-. Calculate the standard cell emf given: ClO3-(aq) +6 H+(aq) + 6 e- ------>Cl-(aq) + 3 H2O(l); E° = 1.45 V.
A common shorthand way to represent a voltaic cell is
anode& anode solution& & cathode solution&cathode
A double vertical line represents a salt bridge or a porous
barrier. A single vertical line represents a change in phase,
such as from solid to solution. (a) Write the half-reactions
and overall cell reaction represented by Fe| Fe2+ || Ag+ |Ag;
calculate the standard cell emf .
(b) Write the half-reactions and overall cell reaction represented
by Zn| Zn2+ || H+ |H2; calculate the standard cell emf
and use Pt for the hydrogen electrode.
(c) Using the notation just described, represent a cell
based on the following reaction:
ClO3-(aq) + 3 Cu(s) + 6 H+(aq) --->Cl-(aq) + 3 Cu2+(aq) + 3 H2O(l)
Pt is used as an inert electrode in contact with the ClO3-
and Cl-. Calculate the standard cell emf given: ClO3-(aq) +
6 H+(aq) + 6 e- ------>Cl-(aq) + 3 H2O(l); E° = 1.45 V.
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