Question

Consider a galvanic electrochemical cell constructed using Cr/Cr³? and Zn/Zn²? at 25 °C. The following half-reactions are provided for each metal: Cr³?(aq) + 3 e? ? Cr(s) E°red = -0.744 V Zn²?(aq) + 2 e? ? Zn(s) E°red = -0.763 V Given that the standard cell potential is 0.019 V and the overall equation is 2 Cr³? (aq) + 3 Zn (s) ? 2 Cr (s) + 3 Zn²? (aq), what is the cell potential for this cell at 25 °C when [Zn²?] = 0.0163 M and [Cr³?] = 0.1576 M?

          Consider a galvanic electrochemical cell constructed using Cr/Cr³? and Zn/Zn²? at 25 °C. The following half-reactions are provided for each metal:

Cr³?(aq) + 3 e? ? Cr(s) E°red = -0.744 V
Zn²?(aq) + 2 e? ? Zn(s) E°red = -0.763 V

Given that the standard cell potential is 0.019 V and the overall equation is 2 Cr³? (aq) + 3 Zn (s) ? 2 Cr (s) + 3 Zn²? (aq), what is the cell potential for this cell at 25 °C when [Zn²?] = 0.0163 M and [Cr³?] = 0.1576 M?

Consider a galvanic electrochemical cell constructed using Cr/Cr³? and Zn/Zn²? at 25 °C. The following half-reactions are provided for each metal:

Cr³?(aq) + 3 e? ? Cr(s) E°red = -0.744 V
Zn²?(aq) + 2 e? ? Zn(s) E°red = -0.763 V

Given that the standard cell potential is 0.019 V and the overall equation is 2 Cr³? (aq) + 3 Zn (s) ? 2 Cr (s) + 3 Zn²? (aq), what is the cell potential for this cell at 25 °C when [Zn²?] = 0.0163 M and [Cr³?] = 0.1576 M?

Added by Katelyn F.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Adi S

09/10/2023

Step 1

05916}{n} \log\left( \frac{[Zn^{2+}]^3}{[Cr^{3+}]^2} \right) \] ** Show more…

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Consider a galvanic electrochemical cell constructed using Cr/Cr³⁺ and Zn/Zn²⁺ at 25 °C. The following half-reactions are provided for each metal: Cr³⁺(aq) + 3 e⁻ → Cr(s) E°red = -0.744 V Zn²⁺(aq) + 2 e⁻ → Zn(s) E°red = -0.763 V Given that the standard cell potential is 0.019 V and the overall equation is 2 Cr³⁺ (aq) + 3 Zn (s) → 2 Cr (s) + 3 Zn²⁺ (aq), what is the cell potential for this cell at 25 °C when [Zn²⁺] = 0.0163 M and [Cr³⁺] = 0.1576 M?