A certain half-reaction has a standard reduction potential Ed=+1.34 V. An engineer proposes using this half-reaction at the cathode of a galvanic cell that must provide at least 1.20 V of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half-reaction to happen at the cathode of the celI. Is there a minimum standard reduction potential that the half-reaction used at the anode of this cell can have? Ov yes, there is a minimum. red If so, check the "yes" box and calculate the minimum. Round your answer to 2 decimal places. If there is no lower limit, check the "no" box. no minimum Is there a maximum standard reduction potential that the half-reaction used at the anode of this cell can have? yes, there is a maximum. red dh Data If so, check the "yes" box and calculate the maximum. Round your answer to 2 decimal places. If there is no upper limit, check the "no" box. no maximum E° (V) Half-Reaction F2 (g) + 2e → 2F¯ (aq) 2.866 Co3+ (aq) + e -→ Co2+ (aq) 1.92 By using the information in the ALEKS Data tab, write a balanced equation describing a half reaction that could be used at the anode of this cell. H2O2 (aq) + 2H+ (aq) + 2e 2H2O (I) 1.776 Au+ (aq) + e Au (s) 1.692 Mn2+ (aq) + 4H2O (I) MnO4 (aq) + 8H+ (aq) + 5e- 1.507 Note: write the half reaction as it would actually occur at the anode. Au3+ (aq) + 3e Au (s) 1.498 2C1 (aq) Cl2 (g) + 2e- 1.35827 O2 (g) + 4H+ (aq) + 4e → 2H20 (I) 1.229 Mn2+ (aq) + 2H2O (I) MnO2 (s) + 4H+ (aq) + 2e¯ → 1.224 2103 (aq) + 12H+ (aq) + 10e I2 (s) + 6H2O (I) 1.195 Br2 (1) + 2e- → 2Br (aq) 1.066 Vo2+ (aq) + 2H+ (aq) + e-→ vO2+ (aq) + H20 (1) 0.991 Explanation Check NO (g) + H20 (I) HNO2 (aq) + H+ (aq) + e 0.983 dard reduction ction used at Ov yes, there is a minimum. %3D red have? ala nh Data and calculate - answer to 2 no lower 2H+ (aq) + 2e- H2 (g) 0.000 no minimum Fe3+ (aq) + 3e Fe (s) -0.037 Pb2+ (aq) + 2e Pb (s) -0.1262 CrO42- (aq) + 4H,0 (1) + 3e → Cr(OH)3 (s) + 50H (aq) -0.13 dard reduction ction used at have? yes, there is a Sn2+ (aq) + 2e Sn (s) -0.1375 Ni2+ (aq) + 2e→ Ni (s) -0.257 and calculate r answer to 2 no upper Co2+ (aq) + 2e Co (s) -0.28 no maximum PBSO4 (s) + H+ (aq) + 2e Pb (s) + HSO4 (aq) -0.3588 Cr+ (aq) + e Cr2+ (aq) -0.407 Fe2+ (aq) + 2e Fe (s) -0.447 n the ALEKS equation chat could be cell. Cr3+ (aq) + 3e Cr (s) -0.744 Zn2+ (aq) + 2e Zn (s) -0.7618 on as it would e. 2H20 (1) + 2e→ H2 (g) + 2OH- (aq) -0.8277 Cr2+ (aq) + 2e Cr (s) =0.913 N2 (g) + 4H2O (I) + 4e → 40H- (aq) + N2H4 (aq) -1.16 Mn2+ (aq) + 2e Mn (s) -1.185 Al3+ (aq) + 3e- Al (s) -1.676 Sc3+ (aq) + 3e Sc (s) -2.077 Mg2+ (aq) + 2e Mg (s) -2.372 Na+ (aq) + e Na (s) -2.71 Check Ca2+ (aq) + 2e Ca (s) -2.868 Ba2+ (ag) + 2e Ba (s) -2.912
Science behind corrosion-test
Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.
Corrosion
Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.
Write out the half reaction as it would actuall Accur at the anode. And is there a min or a max standard reduction.
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