20.72 A voltaic cell is constructed that is based on the following reaction: Sn²* (aq) + Pb(s) Sn(s) + Pb²*(aq) (a) If the concentration of Sn²* in the cathode half-cell is 1.00 M and the cell generates an emf of +0.22 V, what is the concentration of Pb²+ in the anode half-cell? (b) If the an- ode half-cell contains [SO?¯] = 1.00 M in equilibrium with PBSO,(s), what is the K, of PbSO,?

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20.72 A voltaic cell is constructed that is based on the following
reaction:
Sn²*(aq) + Pb(s)
Sn(s) + Pb²*(aq)
(a) If the concentration of Sn* in the cathode half-cell is
1.00 M and the cell generates an emf of +0.22 V, what is the
concentration of Pb2+ in the anode half-cell? (b) If the an-
ode half-cell contains [SO,?-] = 1.00 M in equilibrium with
PBSO,(s), what is the K, of PBSO,?
Transcribed Image Text:20.72 A voltaic cell is constructed that is based on the following reaction: Sn²*(aq) + Pb(s) Sn(s) + Pb²*(aq) (a) If the concentration of Sn* in the cathode half-cell is 1.00 M and the cell generates an emf of +0.22 V, what is the concentration of Pb2+ in the anode half-cell? (b) If the an- ode half-cell contains [SO,?-] = 1.00 M in equilibrium with PBSO,(s), what is the K, of PBSO,?
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