Homework Answers
Add Answer to:
(10p) A corrosion cell is composed of 150cm2 copper sheet and 39 cm iron sheet with...
Describe an expression for the corrosion rate of materials. Describe the importance of this expression to the design of...
Describe an expression for the corrosion rate of materials. Describe the importance of this expression to the design of structures. Name the different methods of protecting structures from uniform corrosion. Consider a copper-zinc corrosion couple. If the current density at the copper cathode is 0.05A/cm2, calculate the weight loss of zinc per hour if (a) the copper area is 100 cm and the zinc anode area is 1cm and (b) the copper cathode area is 1cm2 and the zinc anode...
Objective: Identify types of corrosion and calculate quantities associated with corrosion. Part I: Uniform Corrosion Th...
Objective: Identify types of corrosion and calculate quantities associated with corrosion. Part I: Uniform Corrosion The rate of uniform corrosion can be determined from the following equation, where CPR is the corrosion penetration rate in thickness lost per time. IM CPR = AnpF VA current density over the area which is losing the thickness area over which the material is being lost corrosion current number of electrons involved in the unbalanced oxidation half-reaction (not the number of electrons in the...
A metallurgical microbial fuel cell (MFC) is an attractive alternative for recovery of copper from copper...
A metallurgical microbial fuel cell (MFC) is an attractive alternative for recovery of copper from copper containing waste streams, as the metal is recovered in its metallic form at the cathode, while the energy for metal reduction can be obtained from oxidation of organic materials at the anode with possible additional production of electricity. We studied the recovery of copper in an MFC using a bipolar membrane as a pH separator. Under anaerobic conditions, the maximum power density was 0.43...
Describe a simple test you will perform to ascertain the corrosion rate of materials? Derive an...
Describe a simple test you will perform to ascertain the corrosion rate of materials? Derive an expression for the corrosion rate of materials. What is the process of aluminium anodising? Plain carbon steel immersed in sea water has a uniform corrosion rate expressed as 0.127 mm per year. The density of iron is 7.87Mg/m2. The atomic weight of Fe is 55.8 g/mol a. Calculate the weight loss per year per unit area b. Calculate the corresponding minimum corrosion current per...
In a copper-zinc voltaic cell, one half-cell consists of a ZnZn electrode inserted in a solution...
In a copper-zinc voltaic cell, one half-cell consists of a ZnZn
electrode inserted in a solution of zinc sulfate and the other
half-cell consists of a CuCu electrode inserted in a copper sulfate
solution. These two half-cells are separated by a salt bridge.
At the zinc electrode (anode), ZnZn metal undergoes oxidation by
losing two electrons and enters the solution as Zn2+Zn2+ ions. The
oxidation half-cell reaction that takes place at the anode is
Zn(s)→Zn2+(aq)+2e−Zn(s)→Zn2+(aq)+2e−
The CuCu ions undergo reduction...
Copper can be cemented onto iron particles by the reaction. Cu2+ + Fe = Cu +...
Copper can be cemented onto iron particles by the reaction. Cu2+ + Fe = Cu + Fe2+. A dilute copper solution containing 0.50 g/L of copper is flowed continuously at a rate of 1 m3/h through a stirred tank reactor of volume 10 m3 containing 10 kg of suspended spherical iron particles with a diameter of Imm. The mass transfer coefficient of Cu2+ is 6 x 10-3 cm sl. (i) Calculate the concentration of copper ions in the discharge solution...
Electronic materials corrode in the presence of condensed water vapor and atmospheric pollutants. The corrosion rate...
Electronic materials corrode in the presence of condensed water
vapor and atmospheric pollutants. The corrosion rate of gold was
measured to be 435 mg/m2 -day in an environment consistening of 95%
relative humidity and SO2 and NO2 pollutants. The atomic weight of
gold is 197.0 g/mol and its density is 19.3 g/cm3 . a) What is the
corresponding corrosion current density in amperes per square meter
for the following anodic reaction: 3 Au Au e3 → ++ − b) What...
3 attempts left Check my work Enter your answer in the provided box. A construction company...
3 attempts left Check my work Enter your answer in the provided box. A construction company is installing an iron culvert (a long cylindrical tube) that is 43.0 m long with a radius of 0.600 m. To prevent corrosion, the culvert must be galvanized. This process is carried out by first passing an iron sheet of appropriate dimensions through an electrolytic cell containing Zn2+ ions, using graphite as the anode and the iron sheet as the cathode. If the voltage...
2 attempts left Check my work Enter your answer in the provided box. A construction company...
2 attempts left Check my work Enter your answer in the provided box. A construction company is installing an iron culvert (a long cylindrical tube) that is 49.0 m long with a radius of 0.850 m. To prevent corrosion, the culvert must be galvanized. This process is carried out by first passing an iron sheet of appropriate dimensions through an electrolytic cell containing Zn2+ ions, using graphite as the anode and the iron sheet as the cathode. If the voltage...
i only gwt four trys please and thank you for helping Enter your answer in the...
i only gwt four trys please and thank you for helping
Enter your answer in the provided box. A construction company is installing an iron culvert (a long cylindrical tube) that is 35.0 m long with a radius of 0.600 m. To prevent corrosion, the culvert must be galvanized. This process is carried out by first passing an iron sheet of appropriate dimensions through an electrolytic cell containing Zn2+ ions, using graphite as the anode and the iron sheet as...
Describe an expression for the corrosion rate of materials. Describe the importance of this expression to the design of structures. Name the different methods of protecting structures from uniform corrosion. Consider a copper-zinc corrosion couple. If the current density at the copper cathode is 0.05A/cm2, calculate the weight loss of zinc per hour if (a) the copper area is 100 cm and the zinc anode area is 1cm and (b) the copper cathode area is 1cm2 and the zinc anode...
Objective: Identify types of corrosion and calculate quantities associated with corrosion. Part I: Uniform Corrosion The rate of uniform corrosion can be determined from the following equation, where CPR is the corrosion penetration rate in thickness lost per time. IM CPR = AnpF VA current density over the area which is losing the thickness area over which the material is being lost corrosion current number of electrons involved in the unbalanced oxidation half-reaction (not the number of electrons in the...
Describe a simple test you will perform to ascertain the corrosion rate of materials? Derive an expression for the corrosion rate of materials. What is the process of aluminium anodising? Plain carbon steel immersed in sea water has a uniform corrosion rate expressed as 0.127 mm per year. The density of iron is 7.87Mg/m2. The atomic weight of Fe is 55.8 g/mol a. Calculate the weight loss per year per unit area b. Calculate the corresponding minimum corrosion current per...
In a copper-zinc voltaic cell, one half-cell consists of a ZnZn
electrode inserted in a solution of zinc sulfate and the other
half-cell consists of a CuCu electrode inserted in a copper sulfate
solution. These two half-cells are separated by a salt bridge.
At the zinc electrode (anode), ZnZn metal undergoes oxidation by
losing two electrons and enters the solution as Zn2+Zn2+ ions. The
oxidation half-cell reaction that takes place at the anode is
Zn(s)→Zn2+(aq)+2e−Zn(s)→Zn2+(aq)+2e−
The CuCu ions undergo reduction...
Copper can be cemented onto iron particles by the reaction. Cu2+ + Fe = Cu + Fe2+. A dilute copper solution containing 0.50 g/L of copper is flowed continuously at a rate of 1 m3/h through a stirred tank reactor of volume 10 m3 containing 10 kg of suspended spherical iron particles with a diameter of Imm. The mass transfer coefficient of Cu2+ is 6 x 10-3 cm sl. (i) Calculate the concentration of copper ions in the discharge solution...
Electronic materials corrode in the presence of condensed water
vapor and atmospheric pollutants. The corrosion rate of gold was
measured to be 435 mg/m2 -day in an environment consistening of 95%
relative humidity and SO2 and NO2 pollutants. The atomic weight of
gold is 197.0 g/mol and its density is 19.3 g/cm3 . a) What is the
corresponding corrosion current density in amperes per square meter
for the following anodic reaction: 3 Au Au e3 → ++ − b) What...
3 attempts left Check my work Enter your answer in the provided box. A construction company is installing an iron culvert (a long cylindrical tube) that is 43.0 m long with a radius of 0.600 m. To prevent corrosion, the culvert must be galvanized. This process is carried out by first passing an iron sheet of appropriate dimensions through an electrolytic cell containing Zn2+ ions, using graphite as the anode and the iron sheet as the cathode. If the voltage...
2 attempts left Check my work Enter your answer in the provided box. A construction company is installing an iron culvert (a long cylindrical tube) that is 49.0 m long with a radius of 0.850 m. To prevent corrosion, the culvert must be galvanized. This process is carried out by first passing an iron sheet of appropriate dimensions through an electrolytic cell containing Zn2+ ions, using graphite as the anode and the iron sheet as the cathode. If the voltage...
i only gwt four trys please and thank you for helping
Enter your answer in the provided box. A construction company is installing an iron culvert (a long cylindrical tube) that is 35.0 m long with a radius of 0.600 m. To prevent corrosion, the culvert must be galvanized. This process is carried out by first passing an iron sheet of appropriate dimensions through an electrolytic cell containing Zn2+ ions, using graphite as the anode and the iron sheet as...
Most questions answered within 3 hours.
-
What is the standard error of M (denoted as
σM ) ?
Options:
The mean of...
asked 4 minutes ago -
Kelsey Drums, Inc., is a well-established supplier of fine
percussion instruments to orchestras all over the...
asked 7 minutes ago -
In a criminal case, the state must not prove its case beyond a
reasonable doubt. T/F
asked 12 minutes ago -
5.6 dm^3 of gaseous HCl (as measured in normal conditions) is
dissolved in 100 cm^3 of...
asked 21 minutes ago -
The hammer throw is a track-and-field event in which a 7.2-kg
ball (the ''hammer''), starting from...
asked 38 minutes ago -
Evaluate a specific listening situation using the Sapir-Whorf
and Bernstein hypothesis. What was thecontext? What was...
asked 45 minutes ago -
Recall that if X is a Student’s t random variable with n df,
then by definition...
asked 1 hour ago -
A charge of -2.95 µC is fixed in place. From a horizontal
distance of 0.0470 m,...
asked 1 hour ago -
Consider the following information:
Your company makes widgets. You are trying to figure out what
volume...
asked 1 hour ago -
Math 333 Plz help ASAP
The yield of a chemical process is being studied. From previous...
asked 1 hour ago -
Cobb-Douglas Preferences: Cobb-Douglas preferences on the
consump-
tion set R2+ can be represented by a utility...
asked 1 hour ago -
In your experience, what are some of the barriers to the
successful implementation of a project?...
asked 1 hour ago