A certain metal M forms a soluble sulfate salt M, SO,. Suppose the left half cell of a galvanic cell apparatus is filled with a 4.00 mM solution of M,SO, and the right half cell with a 4.00 M 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 30.0 °C.

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
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A certain metal M forms a soluble sulfate salt M, SO,. Suppose the left half cell of a galvanic cell apparatus is filled with a 4.00 mM solution of M, SO,
and the right half cell with a 4.00 M 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 30.0 °C.
O left
dh
Which electrode will be positive?
O right
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.
Transcribed Image Text:A certain metal M forms a soluble sulfate salt M, SO,. Suppose the left half cell of a galvanic cell apparatus is filled with a 4.00 mM solution of M, SO, and the right half cell with a 4.00 M 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 30.0 °C. O left dh Which electrode will be positive? O right 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.
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