5 example of corrosion with chemical equations
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H2O2 + Ni → H2O + Ni2+
H2O + Mg2+ → H2O2 + Mg
Ni + PbO2 → Pb2+ + Ni2+
Al3+ + OH- → Al + O2
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H2O2 + Ni → H2O + Ni2+
H2O2 + 2H+ + 2e- → 2H2O cathode: 1.776 V vs. SHE
Ni → Ni2+ + 2e- anode: -0.23 V
cell total reaction: H2O2 + 2H+ + Ni → 2H2O + Ni2+
cell potential: Ecathode - Eanode = 1.776 - (-0.23) = 2.01 V
H2O + Mg2+ → H2O2 + Mg
Mg2+ + 2e- → Mg cathode: -2.375 V vs. SHE
2H2O → H2O2 + 2H+ + 2e- anode: 1.776 V
cell total reaction: H2O + Mg2+ → H2O2 + 2H++ Mg
cell potential: Ecathode - Eanode = -2.375 - 1.776 = -4.151 V
Ni + PbO2 → Pb2+ + Ni2+
PbO2 + 4H+ + 2e- → Pb2+ + 2H2O cathode: 1.467 V vs. SHE
Ni → Ni2+ + 2e- anode: -0.23 V
cell total reaction: PbO2 + 4H+ + Ni → Pb2++ 2H2O + Ni2+
cell potential: Ecathode - Eanode = 1.467 - (-0.23) = 1.70 V
Al3+ + OH- → Al + O2
4 x (Al3+ + 3e- → Al) cathode: -1.706 V vs. SHE
3 x (4OH- → O2 + 2H2O + 4e-) anode: 0.401 V
cell total reaction: 4Al3+ + 12OH- → 4Al + 3O2 + 6H2O
cell potential: Ecathode - Eanode = -1.706 - 0.401 = -2.107 V
plzz mark as brain list plsssThe materials like water pipes which are made up of metal continuously exposed to moist atmosphere will get corrode and over the time water starts leaking.
The bottom layer of the boats or ships get corrode, so for every fixed period of time they will get replaced by new materials.
Rusting of some of the materials in our house items.
H2O + Mg2+ → H2O2 + Mg
Ni + PbO2 → Pb2+ + Ni2+
Al3+ + OH- → Al + O2
Answers:
H2O2 + Ni → H2O + Ni2+
H2O2 + 2H+ + 2e- → 2H2O cathode: 1.776 V vs. SHE
Ni → Ni2+ + 2e- anode: -0.23 V
cell total reaction: H2O2 + 2H+ + Ni → 2H2O + Ni2+
cell potential: Ecathode - Eanode = 1.776 - (-0.23) = 2.01 V
H2O + Mg2+ → H2O2 + Mg
Mg2+ + 2e- → Mg cathode: -2.375 V vs. SHE
2H2O → H2O2 + 2H+ + 2e- anode: 1.776 V
cell total reaction: H2O + Mg2+ → H2O2 + 2H++ Mg
cell potential: Ecathode - Eanode = -2.375 - 1.776 = -4.151 V
Ni + PbO2 → Pb2+ + Ni2+
PbO2 + 4H+ + 2e- → Pb2+ + 2H2O cathode: 1.467 V vs. SHE
Ni → Ni2+ + 2e- anode: -0.23 V
cell total reaction: PbO2 + 4H+ + Ni → Pb2++ 2H2O + Ni2+
cell potential: Ecathode - Eanode = 1.467 - (-0.23) = 1.70 V
Al3+ + OH- → Al + O2
4 x (Al3+ + 3e- → Al) cathode: -1.706 V vs. SHE
3 x (4OH- → O2 + 2H2O + 4e-) anode: 0.401 V
cell total reaction: 4Al3+ + 12OH- → 4Al + 3O2 + 6H2O
cell potential: Ecathode - Eanode = -1.706 - 0.401 = -2.107 V
plzz mark as brain list plsssThe materials like water pipes which are made up of metal continuously exposed to moist atmosphere will get corrode and over the time water starts leaking.
The bottom layer of the boats or ships get corrode, so for every fixed period of time they will get replaced by new materials.
Rusting of some of the materials in our house items.
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1.rusting of iron particles 2.DAMAGES THE MARBLE 3.CORROSION OF MACHINES.
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