Answered: Write the balanced equation for the…

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 24E: For each reaction listed, determine its standard cell potential at 25 C and whether the reaction is...

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Question

Write the balanced equation for the overall reaction that occurs in the cell.

Calculate E ̊ for the overall reaction.

A 150. mL sample of CH 3OH (aq) is put into the electrochemical cell. The cell produces an average current of 0.0100 amp for 250. seconds, at which point the CH3OH (aq) has been totally consumed. Calculate the charge, in coulombs, that passed through the cell.

A student uses a galvanic cell to determine the concentration of aqueous methanol, CH,OH. The cell is based on
the half-cell reactions below.
Half Reaction
E' (V)
H2CO (aq) + 2 H* (aq) + 2 e
• CH;OH (aq)
0.45
O2 (g) + 4 H* (aq) + 4 e
2 H20 (1)
1.229

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