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...

See similar textbooks

Similar questions

8. L0s t213.15= 318.18K 2. A woman is 5 ft 5 in tall and weighs 140 lb. Express these values in the SI system (m, kg)
Run 0.01 0.0005 1 0.001 0.01 0.0025 0.005a2 0.01 0.01 0.005 3 il reg 4 olo 2nirio 0.02 HM oion 0.01 borg 0.01 dun 0:04 OdO 0.01 C/C. 0.01 6. 0.06 0.01 0.01
Machinery costs $1 million today and $100,000 per year to operate. It lasts for 8 years. What is the equivalent annual annuity if the discount rate is 9% ? Enter your answer in dollars and round to the nearest cent (one-hundredth). Do not include the dollar sign ($). Do remember to include the negative sign!
Write in standard form 8.65 X 10-4 0.000865 86500 0.0865 0.8650
Please help with the percent stearic acid by mass%