The Ni/Cd battery is based on the following overall reaction: Cd(s) + NiO2(s) CdO(s) + NIO(s) What is the theoretical amount of Cd metal that this battery needs to contain in order to provide a constant 0.00500 A current for exactly 15 days? F = 96,485 C mol. O A. 30.2 g O B. 60.4 g O C. 15.1 g O D. 7.55 g O E. 3.77 g

For the following concentration cell, use the Nernst equation to determine the expected voltage.  Also indicate the oxidation reaction, the reduction reaction, the cell reaction, and the overall expected EMF of the cell using the tables from powerpoint slides 11 and 12 and the Nernst equation.  Once you have determined the cell reaction, write the conventional cell notation. Zn and Zn+2 (0.25M) mixed with Cu and Cu+2 (0.35M)     **(Top screenshot is slide 11, and bottom is slide 12)**

For the following concentration cell, use the Nernst equation to determine the expected voltage. Also indicate the oxidation reaction, the reduction reaction, the cell reaction, and the overall expected EMF of the cell using the tables from powerpoint slides 11 and 12 and the Nernst equation. Once you have determined the cell reaction, write the conventional cell notation. Zn and Zn² (0.25M) mixed with Cu and Cu2 (0.35M)

The Ni/Cd battery is based on the following overall reaction: Cd(s) + NiO2(s)  →  CdO(s) + NiO(s) What is the theoretical amount of Cd metal that this battery needs to contain in order to provide a constant 0.00500 A current for exactly 15 days? F = 96,485 C mol–1.   A.  15.1 g   B.  7.55 g   C.  60.4 g   D.  3.77 g   E.  30.2 g

0 Consider the half-reaction for the reduction of Cd²+ to Cd(s). Cd²+(aq) + 2e¯ → Cd(s) Ecd² +Cd Calculate the potential of the cadmium electrode at 25 °C when immersed in a 0.0760 M solution of CdBr₂. Eca = Ecd= Calculate the potential of the cadmium electrode at 25 °C when immersed in a 0.0520 M NaOH solution that is saturated with Cd(OH)₂. The Ksp for Cd(OH)₂ is 7.2 × 10-¹5. Eca -0.4383 = -0.4383 Incorrect Calculate the potential of the cadmium electrode at 25 °C when immersed in a 0.0350 M Cd(NH3)² + and 0.105 M NH₂ solution. The 4 for Cd(NH3)²+is 3.63 × 106. = -0.403 V -0.4383 Incorrect V V V

11. The following two half-cells are connected to form a full Galvanic cell: Cu"(aq) +2e Au (aq) +e → Cu(s) → Au(s) E° = 0.34 V E 1.69 V a. Calculate E° for the cell. b. Give the cell notation for this system. c. Give the balanced cell reaction. d. Calculate AG for the reaction e. Calculate Keg for the reaction. £. Calculate the cell potential if the activity of Cu is 0.0100 and the activity of Au" is 1.340.

A charger that supplies a current of 120. mA of current is used to recharge a NiCd battery. How much time, in h, does it take to convert 1.55g of Cd(OH)2 back into Cd so the battery can be used again? O4.73 O 1.25 O 2.29 3.94 O0.732

Chemistry 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 Write the balanced equation for the overall reaction in acidic solution.