1. When water is added to the chromium half-cell, the voltage increases. Explain. I thought the...
1. When water is added to the chromium half-cell, the voltage increases. Explain.
I thought the voltage would decrease because when you add water you are diluting it which would decrease the concentration of the chromium, so I don't know why the voltage would increase.
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1. When water is added to the chromium half-cell, the voltage
increases. Explain.
I thought the...
4 4. a) Parts (a) through (c) below are all separate problems. A concentration cell, which...
4 4. a) Parts (a) through (c) below are all separate problems. A concentration cell, which is a type of voltaic cell, is set up with the following two half-cells: Half-cell #1 : Cu (s) electrode immersed in 1.00 L of 1.00 M Cu2+ (aq) Half-cell #2: Cu (s) electrode immersed in 1.00 L of 0.0010 M Cu2+ (aq) Answer the following questions about this concentration cell (1 pt each) i) What is the value of E° for this cell?...
Explain why each change in conditions would affect the reaction rate of reaction when sodium metal...
Explain why each change in conditions would affect the reaction rate of reaction when sodium metal reacts with chlorine gas to form NaCl? As volume increases the reaction rate will decrease because ? As concentration increases the reaction rate will increase because? As the surface area of a molecule is increased the reaction rate will increase because? As temperature decreases the reaction rate will decrease because? As pressure decreases the reaction rate will decrease because? As a catalyst is added...
6. ZnZno Cu Cu cell with Na,Co, added. a. Write a balanced net lonic chemical equation...
6. ZnZno Cu Cu cell with Na,Co, added. a. Write a balanced net lonic chemical equation for the reaction between Cu and 0.1 M Na,CO b. When 3.0 M Na,Co, is added to the 0.1 M Cua solution, does the copper ion concentration increase or decrease in the well? c. Use the cell voltage to calculate the Cum concentration. d. Use Cues concentration to calculate Ksp for Cucos. Let the [CO;?1 = 3.0 M e. Compare the Ksp obtained in...
A voltaic cell is made with a salt bridge of NaNO3 and Fe(NO3)2 for the anode cell and AgNO3 for the cathode cell. a. When constructing the cell, what impact odes the volume of solution in each of the...
A voltaic cell is made with a salt bridge of NaNO3 and Fe(NO3)2 for the anode cell and AgNO3 for the cathode cell. a. When constructing the cell, what impact odes the volume of solution in each of the beakers have on the cell potential? b. If you were to add deionized water to the solution that contains Ag+(aq), would this have any effect on the cell voltage? If so, Explain how the cell voltage would change and why. c....
Please explain, thank you! (4) Consider a cell at 298 K in which the reaction is Pb (s)+2H (aa-Pb2+ (ag) +H2 (g) (a) Cr ions are added to the Pb|Pb2+ half-cell to precipitate PbCh. The cell voltage is...
Please explain, thank you!
(4) Consider a cell at 298 K in which the reaction is Pb (s)+2H (aa-Pb2+ (ag) +H2 (g) (a) Cr ions are added to the Pb|Pb2+ half-cell to precipitate PbCh. The cell voltage is then measured to be +0.210 V. If [H]-1.0 M and the partial pressure of hydrogen is 1.0 atm, what is [Pb2*]? (answer: 1.57 x 103 M) (b) Calculate the Kp of PbCh if [Cl]-0.10 M in the PblPb2 half-cell. (answer: 1.57 x...
Explain why each change in conditions would affect the reaction rate of reaction when sodium metal...
Explain why each change in conditions would affect the reaction rate of reaction when sodium metal reacts with chlorine gas to form NaCl? As a catalyst is added to the mixture the reaction rate will increase because As temperature decreases the reaction rate will decrease because As volume decreases the reaction rate will increase because As concentration increases the reaction rate will increase because As the surface area of a molecule is decreased the reaction rate will decrease because As...
I need help on these cell growth questions 1. As the length of the cell increases,...
I
need help on these cell growth questions
1. As the length of the cell increases, which increases more rapidly the surface area or the volume? Justify your response. The How does the Surface area to volume ratio change as the length of the cell increases? 2. 3. Assume that every cell requires a minimum of 1 unit of oxygen per um (unit volume of cells) every second to stay alive. 10 um bacteria cell versus a 100 um cukaryotic...
3. For the electrochemical cell: Pt(s) | H2(1 atm) | H'(I M)I| C u2(1 M) Cu(s),...
3. For the electrochemical cell: Pt(s) | H2(1 atm) | H'(I M)I| C u2(1 M) Cu(s), which one of the following changes will cause an increase in the cell voltage? A) Lower the H2(g) pressure. B) Increase the size/mass of the copper electrode. C) Lower the H (aq) concentration. D) Decrease the concentration of Cu* ion. E) None of the above. 2+
A cell Sn/Sn (IV) ion- Ni/Ni (II) ion will have electromotive force. i will post the...
A
cell Sn/Sn (IV) ion- Ni/Ni (II) ion will have electromotive
force.
i
will post the whole page but the question i need is #4.
EXPERIMENT 24 PRE-LABORATORY QUESTIONS Define the following: salt bridge, anode, cathode, electrolytic cell. 1. Using Table 24.1, answer the following questions. (a) Which half-cell will be the anode in a cell composed of Al/APion or Mg/Mg2tion half cell couples. Briefly explain. (b) Sketch a diagram of the cell that would be formed by connecting the...
What would you observe if you set up the following electrochemical cell: Ag|AgNO3(0.001 M)||AgNO3(1 M)|Ag? A)...
What would you observe if you set up the following electrochemical cell: Ag|AgNO3(0.001 M)||AgNO3(1 M)|Ag? A) Electrons will flow from right to left, causing an increase in the AgNO3 concentration in the left cell, and a decrease in the AgNO3 concentration in the right cell. B) Electrons will flow from right to left, causing a decrease in the AgNO3 concentration in the left cell, and an increase in the AgNO3 concentration in the right cell. C) Electrons will flow from...
4 4. a) Parts (a) through (c) below are all separate problems. A concentration cell, which is a type of voltaic cell, is set up with the following two half-cells: Half-cell #1 : Cu (s) electrode immersed in 1.00 L of 1.00 M Cu2+ (aq) Half-cell #2: Cu (s) electrode immersed in 1.00 L of 0.0010 M Cu2+ (aq) Answer the following questions about this concentration cell (1 pt each) i) What is the value of E° for this cell?...
6. ZnZno Cu Cu cell with Na,Co, added. a. Write a balanced net lonic chemical equation for the reaction between Cu and 0.1 M Na,CO b. When 3.0 M Na,Co, is added to the 0.1 M Cua solution, does the copper ion concentration increase or decrease in the well? c. Use the cell voltage to calculate the Cum concentration. d. Use Cues concentration to calculate Ksp for Cucos. Let the [CO;?1 = 3.0 M e. Compare the Ksp obtained in...
Please explain, thank you!
(4) Consider a cell at 298 K in which the reaction is Pb (s)+2H (aa-Pb2+ (ag) +H2 (g) (a) Cr ions are added to the Pb|Pb2+ half-cell to precipitate PbCh. The cell voltage is then measured to be +0.210 V. If [H]-1.0 M and the partial pressure of hydrogen is 1.0 atm, what is [Pb2*]? (answer: 1.57 x 103 M) (b) Calculate the Kp of PbCh if [Cl]-0.10 M in the PblPb2 half-cell. (answer: 1.57 x...
I
need help on these cell growth questions
1. As the length of the cell increases, which increases more rapidly the surface area or the volume? Justify your response. The How does the Surface area to volume ratio change as the length of the cell increases? 2. 3. Assume that every cell requires a minimum of 1 unit of oxygen per um (unit volume of cells) every second to stay alive. 10 um bacteria cell versus a 100 um cukaryotic...
3. For the electrochemical cell: Pt(s) | H2(1 atm) | H'(I M)I| C u2(1 M) Cu(s), which one of the following changes will cause an increase in the cell voltage? A) Lower the H2(g) pressure. B) Increase the size/mass of the copper electrode. C) Lower the H (aq) concentration. D) Decrease the concentration of Cu* ion. E) None of the above. 2+
A
cell Sn/Sn (IV) ion- Ni/Ni (II) ion will have electromotive
force.
i
will post the whole page but the question i need is #4.
EXPERIMENT 24 PRE-LABORATORY QUESTIONS Define the following: salt bridge, anode, cathode, electrolytic cell. 1. Using Table 24.1, answer the following questions. (a) Which half-cell will be the anode in a cell composed of Al/APion or Mg/Mg2tion half cell couples. Briefly explain. (b) Sketch a diagram of the cell that would be formed by connecting the...
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