In an electrochemical cell, Q = 4.0 and K = 0.07. What can you conclude about Ecell and E°cell? Ecell is positive and E°cell is negative Ecell is negative and E°cell is negative Ecell is negative and E°cell is positive Ecell is positive and E°cell is positive

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In an electrochemical cell, Q = 4.0 and K = 0.07. What can you conclude about Ecell and E°cell?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter18: Introduction To Electrochemistry

Section: Chapter Questions

Problem 18.3QAP

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Concept explainers

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.

Question

In an electrochemical cell, Q = 4.0 and K = 0.07. What can you conclude about E_cell and E°_cell?

		E_cell is positive and E°_cell is negative
		E_cell is negative and E°_cell is negative
		E_cell is negative and E°_cell is positive
		E_cell is positive and E°_cell is positive

Definition Definition Study of chemical reactions that result in the production of electrical energy. Electrochemistry focuses particularly on how chemical energy is converted into electrical energy and vice-versa. This energy is used in various kinds of cells, batteries, and appliances. Most electrochemical reactions involve oxidation and reduction.

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