# QUESTION 5Given the half reactions   Cu 2+  (aq) + 2e-   → Cu (s)    Eored = + 0.34 VPb2+ (aq) + 2 e-  → Pb (s)    E o red  = -0.13 V  which is the Kc value for the reaction below, when conducted at 25oC?  Pb2+(aq) + Cu(s) → Pb(s) + Cu2+(aq)  A.  7.9 × 10-8  B.  8.9 × 107  C.  7.9 × 1015   D.  1.3 × 10-16

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### QUESTION 5

 Given the half reactions   Cu 2+  (aq) + 2e-   → Cu (s)    Eored = + 0.34 VPb2+ (aq) + 2 e-  → Pb (s)    E o red  = -0.13 V   which is the Kc value for the reaction below, when conducted at 25oC?   Pb2+(aq) + Cu(s) → Pb(s) + Cu2+(aq)
 A.  7.9 × 10-8 B.  8.9 × 107 C.  7.9 × 1015 D.  1.3 × 10-16
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Step 1

Eocell is determined for the given reaction using the given formula.

Step 2

Kc is calculated using the relationship between log Kc and ...

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