This is an electrochemistry question. A nickel plate electrode was submerged in 0.01 M NiSO4 at...
This is an electrochemistry question.
A nickel plate electrode was submerged in 0.01 M NiSO4 at 25ºC.
Determine the current density when the potential of the nickel
electrode is -0.038 V. Assume the electrode reaction is controlled
by activation overpotential, 
= 0.5, the exchange current density i0 = 1*10-5 A/m^2 , and the
activity of Ni2+ is equal to its concentration.
Homework Answers
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This is an electrochemistry question. A nickel plate electrode was submerged in 0.01 M NiSO4 at...
Consider the metal deposition reaction M+e M. Suppose the reaction is run at a current density i ...
Consider the metal deposition reaction M+e M. Suppose the reaction is run at a current density i (A/m) that is 1000 times greater than the exchange current density for the reaction equilibrium i, at 25°C. The cathodic transfer coefficient for the reaction is 0.5 (a) Plot the concentration overpotential for the reaction as a function of(ii ) where im İs the limiting currentdensity (b) Plot the activation overpotential for the reaction as a function of (i/i.) (c) Calculate the range...
calculate the overpotential for the reduction of Ni a) at a current density of 300 A/m2...
calculate the overpotential for the reduction of Ni a) at a current density of 300 A/m2 at a nickel cathode in a solution containing 1 M Ni2. Assume that the high-field approximation to the Butler-Volmer equation can be used and that 2 x 10 A/m2 is the exchange current density for this reaction. ions b) Calculate the potential of the cathode assuming initially that the only reaction is the reduction of nickel ions. e) Calculate the current due to the...
5. How many grams of nickel would be electroplated by passing a constant current of 7.2...
5. How many grams of nickel would be electroplated by passing a constant current of 7.2 A through a solution of Niso, for 900 min? (pls) Απι: What current is needed to deposit 6.500 g of chromium metal from a solution of Cr in a period of 1.00 hr? Ans 7. Considera galvanic cell which has an Iron electrode submerged in a Fe(NO.) sonand a Gold electrode submerged in a Au(NOssola. .) Find the core of this cell under standard...
Answer all question (a-d) thank you Consider a galvanic cell which has an Iron electrode submerged...
Answer all question (a-d)
thank you
Consider a galvanic cell which has an Iron electrode submerged in a Fe(NO3)2 soln. and a Gold electrode submerged in a Au(NO3)3 soln. a) Find the Ecell of this cell under standard conditions: (2pts) Ans: Au3+ (aq) + 3e = Aus) ER 1.50 V + 2e = Fe(s) Er = -0.44 V Fe2+ (aq) b) Write out the balanced net reaction of this cell? (3pts) c) What is the cell potential if the concentration...
answer all 5. How many grams of nickel would be electroplated by passing a constant current...
answer all
5. How many grams of nickel would be electroplated by passing a constant current of 7.2 A through solution of NISO, for 90.0 min? (Apts) Am What current is needed to deposit son of chromium metal from a solution of a period of 1.00W (4) 7. Considera galvanic cell which has an Iron electrode submerged in a Fe(NO), meln. and a Gold cliectrode submerged in a ANO son. .) Find the care of this cell under standard condition:...
Chem 1212 Lab Report on electrochemistry Electrochemistry When electrons transfer between reaction components in a redox...
Chem 1212 Lab Report on electrochemistry
Electrochemistry When electrons transfer between reaction components in a redox reaction, we can harness the motion of the electrons to create a potential. Electrochemistry revolves around the separation of the two half-reactions in a redox reaction and establishing two different electrodes. This might involve physically separating the half-reactions or including a separator, such as a semi-permeable membrane or plastic dividers. With the reactions separated, the electrons will need to flow through the wire connecting...
1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
Consider the metal deposition reaction M+e M. Suppose the reaction is run at a current density i (A/m) that is 1000 times greater than the exchange current density for the reaction equilibrium i, at 25°C. The cathodic transfer coefficient for the reaction is 0.5 (a) Plot the concentration overpotential for the reaction as a function of(ii ) where im İs the limiting currentdensity (b) Plot the activation overpotential for the reaction as a function of (i/i.) (c) Calculate the range...
calculate the overpotential for the reduction of Ni a) at a current density of 300 A/m2 at a nickel cathode in a solution containing 1 M Ni2. Assume that the high-field approximation to the Butler-Volmer equation can be used and that 2 x 10 A/m2 is the exchange current density for this reaction. ions b) Calculate the potential of the cathode assuming initially that the only reaction is the reduction of nickel ions. e) Calculate the current due to the...
5. How many grams of nickel would be electroplated by passing a constant current of 7.2 A through a solution of Niso, for 900 min? (pls) Απι: What current is needed to deposit 6.500 g of chromium metal from a solution of Cr in a period of 1.00 hr? Ans 7. Considera galvanic cell which has an Iron electrode submerged in a Fe(NO.) sonand a Gold electrode submerged in a Au(NOssola. .) Find the core of this cell under standard...
Answer all question (a-d)
thank you
Consider a galvanic cell which has an Iron electrode submerged in a Fe(NO3)2 soln. and a Gold electrode submerged in a Au(NO3)3 soln. a) Find the Ecell of this cell under standard conditions: (2pts) Ans: Au3+ (aq) + 3e = Aus) ER 1.50 V + 2e = Fe(s) Er = -0.44 V Fe2+ (aq) b) Write out the balanced net reaction of this cell? (3pts) c) What is the cell potential if the concentration...
answer all
5. How many grams of nickel would be electroplated by passing a constant current of 7.2 A through solution of NISO, for 90.0 min? (Apts) Am What current is needed to deposit son of chromium metal from a solution of a period of 1.00W (4) 7. Considera galvanic cell which has an Iron electrode submerged in a Fe(NO), meln. and a Gold cliectrode submerged in a ANO son. .) Find the care of this cell under standard condition:...
Chem 1212 Lab Report on electrochemistry
Electrochemistry When electrons transfer between reaction components in a redox reaction, we can harness the motion of the electrons to create a potential. Electrochemistry revolves around the separation of the two half-reactions in a redox reaction and establishing two different electrodes. This might involve physically separating the half-reactions or including a separator, such as a semi-permeable membrane or plastic dividers. With the reactions separated, the electrons will need to flow through the wire connecting...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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