A voltaic cell is constructed in which the cathode is a standard hydrogen electrode and the anode is a hydrogen electrode ( PH, )= latm) immersed in a solution of unknown [H*]. If the cell potential is 0.201 V, what is the pH of the unknown solution at 298 K?

A voltaic cell is constructed in which the cathode is a standard hydrogen electrode and the anode is a hydrogen electrode ( PH, )= latm) immersed in a solution of unknown [H*]. If the cell potential is 0.201 V, what is the pH of the unknown solution at 298 K?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter17: Electrochemistry And Its Applications

Section: Chapter Questions

Problem 50QRT

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Concept explainers

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.

Question

A voltaic cell is constructed in which the cathode is a standard hydrogen electrode and the anode is a hydrogen electrode (
PH, )= latm) immersed in a solution of unknown [H*]. If the cell potential is 0.201 V, what is the pH of the unknown solution at 298 K?
pH =

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