A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential Br,(1)+2e → 2 Br (aq) E. =+1.065 V red Crof (aq)+4H,0(1)+3e¯ → Cr(OH)3(s)+5 OH (aq) -0.13 V Answer the following questions about this cell. Write a balanced O- equation for the half-reaction that | happens at the cathode. Write a balanced equation for the half-reaction that happens at the anode. Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous as written. Do you have enough information to Yes calculate the cell voltage under standard No conditions? If you said it was possible to calculate the cell voltage, do so and enter your answer Ov here. Be sure your answer has the correct number of significant digits.
A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential Br,(1)+2e → 2 Br (aq) E. =+1.065 V red Crof (aq)+4H,0(1)+3e¯ → Cr(OH)3(s)+5 OH (aq) -0.13 V Answer the following questions about this cell. Write a balanced O- equation for the half-reaction that | happens at the cathode. Write a balanced equation for the half-reaction that happens at the anode. Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous as written. Do you have enough information to Yes calculate the cell voltage under standard No conditions? If you said it was possible to calculate the cell voltage, do so and enter your answer Ov here. Be sure your answer has the correct number of significant digits.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Question
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Transcribed Image Text:A chemist designs a galvanic cell that uses these two half-reactions:
half-reaction
standard reduction potential
Br,(1)+2e
2 Br (aq)
E°=+1.065 V
red
Cro (aq)+4 H,0(1)+3e'
Cr(OH)3(5)+5OH¯ (aq)
=-0.13 V
Answer the following questions about this cell.
Write a balanced
O-
equation for the
half-reaction that |
happens at the
cathode.
Write a balanced
equation for the
half-reaction that
happens at the
anode.
Write a balanced
equation for the
overall reaction
that powers the
cell. Be sure the
reaction is
spontaneous as
written.
Do you have
enough
information to
calculate the cell
Yes
voltage under
standard
conditions?
No
If you said it was
possible to
calculate the cell
voltage, do so and
enter your answer |Oy
here. Be sure your
answer has the
correct number of
significant digits.
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