60.. The greater the emf of a cell (anode emf minus cathode emf), the greater thetendency that corrosion will occur. For the following corrosion cels, write theanode and cathode reactions in salt water and the initial cell emf, please see attachedtable. MF table ?a) Mild steel and zinc.b) 1100 aluminum and copperEMF tableThe electromotive force (emf) series forTABLE 20-1selected elemertsElectrodePotentialMetal(V)Li + Lit + eMg* + 2eAl+ + 3c"Ti* + 2e"Mn2+ + 2e"Zn* + 2eČř + Cr+Fe .- 3.05- 2.37-1.66- 1.63- 1.63-0.76АnodicMgAl --+TiMn +Zn -- 0.74- 0.44- 0.25- 0.14-- 0,13+ 3e"Fe* + 2eNi2+ + 2c"Sn -+ Sn?* + 2ePb + Pb?* + 2c"Ni+ 2H* + 2e"0.00+0.34+ 0.40+ 0.80+ 1.20+ 1.23+ 1.5Cu -Cu²+ + 2c"Oz + 2H,0 + 4e".AgPt Pt* + 4e"2H,0Au - Au+ + 3c"4(OH)"Ag* + c-O, + 4H* + 4cCathodic

The two metals will complete at anode for oxidation. Since we have used saline water, water will be…

60. . The greater the emf of a cell (anode emf minus cathode emf), the greater the tendency that corrosion will occur. For the following corrosion cells, write the anode and cathode reactions in salt water and the initial cell emf, please see attached table. MF table ? a) Mild steel and zinc. b) 1100 aluminum and copper EMF table TABLE 20-1 The electromotive force (emf) series for selected elemerts Electrode Potential Metal (V) - 3.05 - 2.37 - 1.66 - 1.63 - 1.63 -0.76 - 0.74 - 0.44 Anodic Li - Li* + c* Mg - Mg* + 2e Al + Al+ + 3e Ti* + 2e" Mn2+ + 2e" Ti - Mn Zn -- Zn* + 2e Čř + Cr* + 3e" Fe . Fe+ + 2c- Ni Ni+ + 2c' Sn -+ Sn* + 2e Pb - Pb?* + 2c" -0.25 - 0.14 -- 0.13 0.00 +0.34 +0.40 + 0.80 + 1.20 + 1.23 + 1.5 H2 + 2H* + 2e" Cu - Cu?+ + 2c" 4(OH)" + O2 + 2H,O + 4e- Ag - Ag* + e- Pt Pt* + 4e¯ 2H,0 + 0, + 4H + 4c- Au+ + 3c" Cathodic Au -

60. . The greater the emf of a cell (anode emf minus cathode emf), the greater the tendency that corrosion will occur. For the following corrosion cells, write the anode and cathode reactions in salt water and the initial cell emf, please see attached table. MF table ? a) Mild steel and zinc. b) 1100 aluminum and copper EMF table TABLE 20-1 The electromotive force (emf) series for selected elemerts Electrode Potential Metal (V) - 3.05 - 2.37 - 1.66 - 1.63 - 1.63 -0.76 - 0.74 - 0.44 Anodic Li - Li* + c* Mg - Mg* + 2e Al + Al+ + 3e Ti* + 2e" Mn2+ + 2e" Ti - Mn Zn -- Zn* + 2e Čř + Cr* + 3e" Fe . Fe+ + 2c- Ni Ni+ + 2c' Sn -+ Sn* + 2e Pb - Pb?* + 2c" -0.25 - 0.14 -- 0.13 0.00 +0.34 +0.40 + 0.80 + 1.20 + 1.23 + 1.5 H2 + 2H* + 2e" Cu - Cu?+ + 2c" 4(OH)" + O2 + 2H,O + 4e- Ag - Ag* + e- Pt Pt* + 4e¯ 2H,0 + 0, + 4H + 4c- Au+ + 3c" Cathodic Au -

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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