O ELECTROCHEMISTRY Understanding concentration cells DENNIS A certain metal M forms a soluble nitrate salt M(NO3 Suppose the left half cell of a galvanic cell apparatus is filled with a 4.00 M solution of M(NO3), and 2 the right lf cell with a 40.0 mM solution of the same substance. Electrodes made of M are dipped into both solutions and a voltmeter is connected between them. The temperature of the apparatus is held constant at 40.0 °C. left Which electrode will be positive? x10 right ? 18 Ar What voltage will the voltmeter show? Assume its positive lead is connected to the positive electrode. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. Explanation Check O 2019 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy II

O ELECTROCHEMISTRY Understanding concentration cells DENNIS A certain metal M forms a soluble nitrate salt M(NO3 Suppose the left half cell of a galvanic cell apparatus is filled with a 4.00 M solution of M(NO3), and 2 the right lf cell with a 40.0 mM solution of the same substance. Electrodes made of M are dipped into both solutions and a voltmeter is connected between them. The temperature of the apparatus is held constant at 40.0 °C. left Which electrode will be positive? x10 right ? 18 Ar What voltage will the voltmeter show? Assume its positive lead is connected to the positive electrode. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. Explanation Check O 2019 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy II

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 83E: Consider a concentration cell that has both electrodes made of some metal M. Solution A in one...

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Consider a voltaic cell in which the following reaction takes place in basic medium at 25°C. 2NO3-(aq)+3S2(aq)+4H2O3S(s)+2NO(g)+8OH(aq) (a) Calculate E°. (b) Write the Nernst equation for the cell E. (c) Calculate E under the following conditions: PNO=0.994atm,ph=13.7,[S2]=0.154M,[NO3-]=0.472M, .
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