À voltalc cell operating under standard conditions (1.0 M ion concentrations) utilizes the following reaction: Mn(s) + Cu2* (aq) = Mn2+(aq) + Cu(s) What is the effect on the cell emf of each of the following changes? (a) Water is added to the anode compartment, diluting the solution. The positive cell emf rises, becoming more positive. The positive cell emf drops closer to zero. The negative cell emf rises closer to zero. The negative cell emf drops, becoming more negative. No change in cell emf occurs. (b) The size of the copper electrode is increased. The positive cell emf rises, becoming more positive. The positive cell emf drops closer to zero. • The negative cell emf rises closer to zero. The negative cell emf drops, becoming more negative. No change in cell emf occurs.

À voltalc cell operating under standard conditions (1.0 M ion concentrations) utilizes the following reaction: Mn(s) + Cu2* (aq) = Mn2+(aq) + Cu(s) What is the effect on the cell emf of each of the following changes? (a) Water is added to the anode compartment, diluting the solution. The positive cell emf rises, becoming more positive. The positive cell emf drops closer to zero. The negative cell emf rises closer to zero. The negative cell emf drops, becoming more negative. No change in cell emf occurs. (b) The size of the copper electrode is increased. The positive cell emf rises, becoming more positive. The positive cell emf drops closer to zero. • The negative cell emf rises closer to zero. The negative cell emf drops, becoming more negative. No change in cell emf occurs.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 76AP

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