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17. Changes to Cell 0/1 points Refering to the cell above, what will happen to the...
Please label as instructed, show all work and circle correct answers. Thanks 11. An electrochemical cell uses the follow...
Please label as instructed,
show all work and circle correct answers. Thanks
11. An electrochemical cell uses the following balanced chemical equation 3Ag (aq)+Al(s)AP(aq) + 3Ag(s) Ecell = +2.46 V A. (6 pts) Clearly label the following cell diagram with the following information: a. Anode and cathode b. Direction of electron flow under standard state conditions Direction of cation flow in the salt bridge c. AI Ag (s) (s) APtaa Aglaq) NO,(aq) NO (aq) B. (7 pts) What is the...
Table provided below for context Please answer all parts that you can. 1. Which electrochemical cell...
Table provided below for context
Please answer all parts that you can.
1. Which electrochemical cell had the greatest voltage? Identify the anode and the cathode for this pair, the measured cell potential, and the calculated Eºcell- 2. Which electrochemical cell had the smallest voltage? Identify the anode and the cathode for this pair, the measured cell potential, and the calculated Eºcell- 3. If the oxidation and reduction half-reactions are separated in a battery, this means the oxidizing agent is...
14. In which cell is there one half-cell containing solid lead and lead() ions and the...
14. In which cell is there one half-cell containing solid lead and lead() ions and the other half-cell containing aluminum and aluminum ions? A. PS All Pblys B. AICIYAH Pb, PUSO2) c. PCM PA1,50 Drag D. Aly/50 xan All Pro PCI 15. If the electrical potential for the reduction half-reaction Se, +2e--Sedes were assigned a value 0.00 V, what would be the electrical potential for the reaction Zn +20+ZAW? A B -0.92 V -0.76 V C D +0.16 V -168...
Part 1.) Part 2.) A voltaic cell operating under standard conditions (1.0 M ion concentrations) utilizes...
Part 1.)
Part 2.)
A voltaic cell operating under standard
conditions (1.0 M ion concentrations) utilizes the
following reaction:
2 Al(s) + 3 Ni2+(aq) 2
Al3+(aq) + 3 Ni(s)
What is the effect on the cell emf of each of the following
changes?
(a) Water is added to the cathode compartment, diluting the
solution:
The positive cell emf rises, becoming more positive. The positive
cell emf drops closer to zero. The negative cell emf rises closer
to zero. The negative...
Prelab Activity: Electrochemical Cells To determine the solubility product of copper(II) carbonate, CuCO3 , a concentration...
Prelab Activity:
Electrochemical Cells
To determine the solubility product of copper(II) carbonate,
CuCO3 , a concentration cell as described on pages 71-72
of the lab handout is constructed. The temperature of the Galvanic
cell is measured to be 22.5°C, and the cell potential 282 mV (0.282
V). Using this data and Equation 8 in the lab manual, calculate the
Ksp for CuCO3 and report your answer with
three significant digits.
For the Galvanic cell you will construct in PART B,...
please and please choose the right answer and please make it clear for my understanding 1-Which...
please and please choose the right answer and please make it clear for my understanding 1-Which of the following statements are false? Oxidation and reduction half-reactions occur at electrodes in electrochemical cells All electrochemical reactions involve the transfer of electrons Oxidation occurs at the anode All voltaic (galvanic) cells involve the use of electricity to initiate nonspontaneous chemical reactions Reduction occurs at the cathode 2-During the electrolysis of aqueous KCl solution using inert electrodes, gaseous hydrogen is evolved at one...
please do them all Choose 19. Choose best answer from drop-down menu: 3 points Calculate Ecell...
please
do them all
Choose 19. Choose best answer from drop-down menu: 3 points Calculate Ecell for the reaction 2 given the Ecell of reaction 1, Reaction 1: 2 Cr2+ + Cl2(g) → 2Cr3+ + 2C1 Reaction 2: Cr3+ + CH → Cr2+ + 1/2 Cl2(g) Ecell = 1.78 V Ecell = ? Choose 20. Choose best answer from drop-down menu: 2 points Consider the following standard reduction potentials in acid solution: E°(V) AP+ + 3e → Als) -1.66 AgBro+e...
5. What was the purpose of the NaNO3 solution in this experiment? 6. Could a solution...
5. What was the purpose of the NaNO3 solution in this experiment? 6. Could a solution of NaCl be used instead of NaNO3? 7. What was the purpose of FeSO4 solution in this experiment? 8. Could a solution of FeCl, be used instead of FeSO4? 9. Could a solution of NaSO4 be used instead of FeSO4? 10. Calculate the standard cell potential for the spontaneous redox reaction between a Pb(s)/Pb(NO3)2(aq) half-cell and a Ag(s)/AgNO3(aq) half-cell. Which metal would be oxidized?...
18 15 16 17 7- What is the concentration of DNA whereby a 1:100 dilution has...
18 15 16 17 7- What is the concentration of DNA whereby a 1:100 dilution has an observance reading of 0.015 at 260 nm? a. 6 ug mL b. 60 ug/mL c. 75 ug/mL d. 750 ug/mL 8- When measuring the concentration of RNA by spectrophotometry at 260 nm, the absorbance reading is multiplied by the dilution and a conversion factor of a. 20 6.30 c. 40 d. 50 9-DNA is isolated from a clinical sample. The absorbance at 260...
In cell C6, insert a Scatter Chart for the Returns Completed versus Return Price data from...
In
cell C6, insert a Scatter Chart for the Returns
Completed versus Return Price data from the Data
worksheet. You may be used to seeing Price placed on the Y-axis
from other economics courses, but in this problem we are using
price as the independent variable.
Inserting Chart
Select the Scatter chart from the provided chart options in the
Charts group of the Insert tab of the Ribbon.
Selecting Data Series
Then choose Select Data in the Design tab on...
Please label as instructed,
show all work and circle correct answers. Thanks
11. An electrochemical cell uses the following balanced chemical equation 3Ag (aq)+Al(s)AP(aq) + 3Ag(s) Ecell = +2.46 V A. (6 pts) Clearly label the following cell diagram with the following information: a. Anode and cathode b. Direction of electron flow under standard state conditions Direction of cation flow in the salt bridge c. AI Ag (s) (s) APtaa Aglaq) NO,(aq) NO (aq) B. (7 pts) What is the...
Table provided below for context
Please answer all parts that you can.
1. Which electrochemical cell had the greatest voltage? Identify the anode and the cathode for this pair, the measured cell potential, and the calculated Eºcell- 2. Which electrochemical cell had the smallest voltage? Identify the anode and the cathode for this pair, the measured cell potential, and the calculated Eºcell- 3. If the oxidation and reduction half-reactions are separated in a battery, this means the oxidizing agent is...
14. In which cell is there one half-cell containing solid lead and lead() ions and the other half-cell containing aluminum and aluminum ions? A. PS All Pblys B. AICIYAH Pb, PUSO2) c. PCM PA1,50 Drag D. Aly/50 xan All Pro PCI 15. If the electrical potential for the reduction half-reaction Se, +2e--Sedes were assigned a value 0.00 V, what would be the electrical potential for the reaction Zn +20+ZAW? A B -0.92 V -0.76 V C D +0.16 V -168...
Part 1.)
Part 2.)
A voltaic cell operating under standard
conditions (1.0 M ion concentrations) utilizes the
following reaction:
2 Al(s) + 3 Ni2+(aq) 2
Al3+(aq) + 3 Ni(s)
What is the effect on the cell emf of each of the following
changes?
(a) Water is added to the cathode compartment, diluting the
solution:
The positive cell emf rises, becoming more positive. The positive
cell emf drops closer to zero. The negative cell emf rises closer
to zero. The negative...
Prelab Activity:
Electrochemical Cells
To determine the solubility product of copper(II) carbonate,
CuCO3 , a concentration cell as described on pages 71-72
of the lab handout is constructed. The temperature of the Galvanic
cell is measured to be 22.5°C, and the cell potential 282 mV (0.282
V). Using this data and Equation 8 in the lab manual, calculate the
Ksp for CuCO3 and report your answer with
three significant digits.
For the Galvanic cell you will construct in PART B,...
please
do them all
Choose 19. Choose best answer from drop-down menu: 3 points Calculate Ecell for the reaction 2 given the Ecell of reaction 1, Reaction 1: 2 Cr2+ + Cl2(g) → 2Cr3+ + 2C1 Reaction 2: Cr3+ + CH → Cr2+ + 1/2 Cl2(g) Ecell = 1.78 V Ecell = ? Choose 20. Choose best answer from drop-down menu: 2 points Consider the following standard reduction potentials in acid solution: E°(V) AP+ + 3e → Als) -1.66 AgBro+e...
5. What was the purpose of the NaNO3 solution in this experiment? 6. Could a solution of NaCl be used instead of NaNO3? 7. What was the purpose of FeSO4 solution in this experiment? 8. Could a solution of FeCl, be used instead of FeSO4? 9. Could a solution of NaSO4 be used instead of FeSO4? 10. Calculate the standard cell potential for the spontaneous redox reaction between a Pb(s)/Pb(NO3)2(aq) half-cell and a Ag(s)/AgNO3(aq) half-cell. Which metal would be oxidized?...
18 15 16 17 7- What is the concentration of DNA whereby a 1:100 dilution has an observance reading of 0.015 at 260 nm? a. 6 ug mL b. 60 ug/mL c. 75 ug/mL d. 750 ug/mL 8- When measuring the concentration of RNA by spectrophotometry at 260 nm, the absorbance reading is multiplied by the dilution and a conversion factor of a. 20 6.30 c. 40 d. 50 9-DNA is isolated from a clinical sample. The absorbance at 260...
In
cell C6, insert a Scatter Chart for the Returns
Completed versus Return Price data from the Data
worksheet. You may be used to seeing Price placed on the Y-axis
from other economics courses, but in this problem we are using
price as the independent variable.
Inserting Chart
Select the Scatter chart from the provided chart options in the
Charts group of the Insert tab of the Ribbon.
Selecting Data Series
Then choose Select Data in the Design tab on...
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