a)
Interpretation:Prevention of metal from corrosion by paint should be determined.
Concept introduction:Corrosion is phenomenon for conversion of metal into oxides, sulfates or hydroxides. Gradual degradation of materials due to
b)
Interpretation: Prevention of metal from corrosion by durable oxide coatings should be determined.
Concept introduction:Corrosion is phenomenon for conversion of metal into oxides, sulfates or hydroxides. Gradual degradation of materials due to electrochemical or chemical reaction with environment is called corrosion. This process leads to destruction of materials.
c)
Interpretation: Prevention of metal from corrosion by galvanization should be determined.
Concept introduction:Corrosion is phenomenon for conversion of metal into oxides, sulfates or hydroxides. Gradual degradation of materials due to electrochemical or chemical reaction with environment is called corrosion. This process leads to destruction of materials.
d)
Interpretation: Prevention of metal from corrosion by sacrificial metal should be determined.
Concept introduction:Corrosion is phenomenon for conversion of metal into oxides, sulfates or hydroxides. Gradual degradation of materials due to electrochemical or chemical reaction with environment is called corrosion. This process leads to destruction of materials.
e)
Interpretation: Prevention of metal from corrosion by alloying should be determined.
Concept introduction:Corrosion is phenomenon for conversion of metal into oxides, sulfates or hydroxides. Gradual degradation of materials due to electrochemical or chemical reaction with environment is called corrosion. This process leads to destruction of materials.
f)
Interpretation: Prevention of metal from corrosion by cathodic protection should be determined.
Concept introduction:Corrosion is phenomenon for conversion of metal into oxides, sulfates or hydroxides. Gradual degradation of materials due to electrochemical or chemical reaction with environment is called corrosion. This process leads to destruction of materials.
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Chemical Principles
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- Consider the following electrochemical cell: a. If silver metal is a product of the reaction, is the cell a galvanic cell or electrolytic cell? Label the cathode and anode, and describe the direction of the electron flow. b. If copper metal is a product of the reaction, is the cell a galvanic cell or electrolytic cell? Label the cathode and anode, and describe the direction of the electron flow. c. If the above cell is a galvanic cell, determine the standard cell potential. d. If the above cell is an electrolytic cell, determine the minimum external potential that must be applied to cause the reaction to occur.arrow_forwardAn aqueous solution of an unknown salt of vanadium is electrolyzed by a current of 2.50 amps for 1.90 hours. The electroplating is carried out with an efficiency of 95.0%, resulting in a deposit of 2.850 g of vanadium. a How many faradays are required to deposit the vanadium? b What is the charge on the vanadium ions (based on your calculations)?arrow_forwardHydrogen peroxide is often stored in the refrigerator to help keep it from decomposing according to the reaction: Use information from the standard reduction potentials to determine the equilibrium constant of this reaction.arrow_forward
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