The plating of steel with nickel to prevent corrosion is called galvanization. How long would it...
The plating of steel with nickel to prevent corrosion is called galvanization. How long would it take to galvanize a steel sheet by plating it with 100 grams of nickel from a NiCl2bath using a current of 2.5A?
Homework Answers
Time taken to galvanize =
36.67 hours
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The plating of steel with nickel to prevent corrosion is called
galvanization. How long would it...
sonus(Uptional) Would you recommend plating Fe, to protect it from corrosion, with each of the following...
sonus(Uptional) Would you recommend plating Fe, to protect it from corrosion, with each of the following metals/Au Cr; Ba; Pb? Why or why not? [Ignore the cost of the metat in making your decision.] page.) (To asstst in your choice of the correct response consult the standard reduction potentials on the cover
A steel sheet with dimensions LxWxH = 50 mm x 10 mm x 2 mm is...
A steel sheet with dimensions LxWxH = 50 mm x 10 mm x 2 mm is to be coated with a thin layer of nickel using electroplating. The sheet is entirely submerged in the electrolytic bath for 15 mins. If the process operates at a current of 80 amps, determine the average plating thickness. Which electrode should the steel sheet act as?
Nickel can be plated from aqueous solution according to the following half reaction. How long would...
Nickel can be plated from aqueous solution according to the following half reaction. How long would it take in seconds) to plate 3.2 g of nickel at 50.0 Amps ? A.W.NI - 58.7 g/mol Ni 2+(aq) + 2 e-- NI(S) a. 2100 seconds b. 21.0 seconds C 1.1 x 104 seconds d. 210 seconds e. 105 seconds
5) People with severe contact dermatitis may have some concern over the nickel content Stainless steel...
5)
People with severe contact dermatitis may have some concern over the nickel content Stainless steel utensils. Suppose you knew that the % Ni in a steel sample was approximately 10.00%. If you wanted to ensure that you produced 5.00 gramot precipitate, how many grams of steel would you suggest as a sample? Gwen Ni reacts with a precipitating agent called DMG in a 1:2 stoichiometry to form NI(DMG)2. The Molar mass of Ni = 58.69 g/mol; the molar mass...
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...
4. It is required to drl 0.3 mm diameter holes in a nickel sheet using a pulsed Nd:YAG 2nd harmonic laser with a 9 kW peak power output. How long will it take to reach the melting point on the top su...
4. It is required to drl 0.3 mm diameter holes in a nickel sheet using a pulsed Nd:YAG 2nd harmonic laser with a 9 kW peak power output. How long will it take to reach the melting point on the top surface? a. b. How long will it take to reach the boiling point at the surface so hole drilling can begin?
4. It is required to drl 0.3 mm diameter holes in a nickel sheet using a pulsed Nd:YAG...
Q 4 Based on your previous researched in the mechanical engineering solve this. Steel is securely...
Q
4 Based on your previous researched in the mechanical engineering solve this. Steel is securely tightened onto a bolt in an industrial environment. After several months, the nut is found to contain numerous cracks, even though no externally applied load acts on the nut. (1) Explain why cracking might have occurred? (2) How to prevent it? 5 An oil company has air compressor systems in their facilities. The pipeline is aluminum alloys. The technician removed the inlet air filter...
help please 5. How many grams of nickel would be electroplated by passing a constant current...
help please
5. How many grams of nickel would be electroplated by passing a constant current of 7.2 A through a solution of NiSO4 for 90.0 min? (4pts) Ans:
1 4 You would like to produce a gold-plated coin by plating gold onto a penny...
1 4 You would like to produce a gold-plated coin by plating gold onto a penny 1.90 cm in diameter. How many days will it take to produce a layer of gold 0.250 mm thick (on both sides of the coin) from an Au3+ bath using a current of 0.0200 A? (density of gold = 19.3 g/cm”) For the purposes of this problem, you can ignore the edges of the coin. 7 +
A. How many grams of nickel metal will be deposited from a solution that contains Ni2+ions...
A. How many grams of nickel metal will be deposited from a solution that contains Ni2+ions if a current of 1.21 A is applied for 48.0minutes. B. How many grams of nickel metal will be deposited from a solution that contains Ni2+ions if a current of 0.664 A is applied for 38.0minutes. ______Grams C. How many grams of cobalt metal will be deposited from a solution that contains Co2+ions if a current of 0.809 A is applied for 67.8minutes. ___________grams
sonus(Uptional) Would you recommend plating Fe, to protect it from corrosion, with each of the following metals/Au Cr; Ba; Pb? Why or why not? [Ignore the cost of the metat in making your decision.] page.) (To asstst in your choice of the correct response consult the standard reduction potentials on the cover
Nickel can be plated from aqueous solution according to the following half reaction. How long would it take in seconds) to plate 3.2 g of nickel at 50.0 Amps ? A.W.NI - 58.7 g/mol Ni 2+(aq) + 2 e-- NI(S) a. 2100 seconds b. 21.0 seconds C 1.1 x 104 seconds d. 210 seconds e. 105 seconds
5)
People with severe contact dermatitis may have some concern over the nickel content Stainless steel utensils. Suppose you knew that the % Ni in a steel sample was approximately 10.00%. If you wanted to ensure that you produced 5.00 gramot precipitate, how many grams of steel would you suggest as a sample? Gwen Ni reacts with a precipitating agent called DMG in a 1:2 stoichiometry to form NI(DMG)2. The Molar mass of Ni = 58.69 g/mol; the molar mass...
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...
4. It is required to drl 0.3 mm diameter holes in a nickel sheet using a pulsed Nd:YAG 2nd harmonic laser with a 9 kW peak power output. How long will it take to reach the melting point on the top surface? a. b. How long will it take to reach the boiling point at the surface so hole drilling can begin?
4. It is required to drl 0.3 mm diameter holes in a nickel sheet using a pulsed Nd:YAG...
Q
4 Based on your previous researched in the mechanical engineering solve this. Steel is securely tightened onto a bolt in an industrial environment. After several months, the nut is found to contain numerous cracks, even though no externally applied load acts on the nut. (1) Explain why cracking might have occurred? (2) How to prevent it? 5 An oil company has air compressor systems in their facilities. The pipeline is aluminum alloys. The technician removed the inlet air filter...
help please
5. How many grams of nickel would be electroplated by passing a constant current of 7.2 A through a solution of NiSO4 for 90.0 min? (4pts) Ans:
1 4 You would like to produce a gold-plated coin by plating gold onto a penny 1.90 cm in diameter. How many days will it take to produce a layer of gold 0.250 mm thick (on both sides of the coin) from an Au3+ bath using a current of 0.0200 A? (density of gold = 19.3 g/cm”) For the purposes of this problem, you can ignore the edges of the coin. 7 +
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