Question

No.
..12 The standard reduction potential (EⓇ) for the conversion of Cr20 2- to Cr?+ at 25 °C in an
aqueous solution of pH 3.0 is 1.33 V. The concentrations of Cr2O72- and Cr3+ are
1.0 * 10-4 M and 1.0 x 10-3 M, respectively. Then the potential of this half-cell reaction is
(Given: Faraday constant = 96500 C mol-!, Gas constant R = 8.314 J K-mol-')
(A) 1.04 V
(B) 0.94 V
(C) 0.84 V
(D) 0.74 V
Ecell - Fo-0.05​

Answer 1

Answer: Option (B)

Explanation:

See the Picture