A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 °C. The initial concentrations of Ni²+ and Zn2+ are 1.30 mol L-1 and 0.110 mol L-1, respectively. Zn2+(aq) + 2eZn(s) E° = -0.76 V Ni2+(aq) + 2e Ni(s) E° = -0.23 V What is the cell potential when the concentration of Ni²+ has fallen to 0.600 mol L-¹? Express your answer to two decimal places and include the appropriate units. Ecall 0.50 A V ? Submit Previous Answers Request Answer * Incorrect; Try Again; One attempt remaining Part C What are the concentrations of Ni²+ and Zn2+ when the cell potential falls to 0.46 V? Express your answers using two significant figures separated by a comma. ΜΕ ΑΣΦ [Ni²+], [Zn²+] = Submit Request Answer ? mol L-1

A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 °C. The initial concentrations of Ni²+ and Zn2+ are 1.30 mol L-1 and 0.110 mol L-1, respectively. Zn2+(aq) + 2eZn(s) E° = -0.76 V Ni2+(aq) + 2e Ni(s) E° = -0.23 V What is the cell potential when the concentration of Ni²+ has fallen to 0.600 mol L-¹? Express your answer to two decimal places and include the appropriate units. Ecall 0.50 A V ? Submit Previous Answers Request Answer * Incorrect; Try Again; One attempt remaining Part C What are the concentrations of Ni²+ and Zn2+ when the cell potential falls to 0.46 V? Express your answers using two significant figures separated by a comma. ΜΕ ΑΣΦ [Ni²+], [Zn²+] = Submit Request Answer ? mol L-1

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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