1. A voltmeter measures the cell potential. True False 2. A half-cell is where a half-reaction...
1. A voltmeter measures the cell potential. True False
2. A half-cell is where a half-reaction takes place. True False
3. The standard reduction potential for an electrode is measured at 1 atm partial pressure of gases, 1 M concentration of dissolved ions, and 0°C. True False
4. Consider the following half reaction, and choose all correct answers below. CHOOSE ALL CORRECT ANSWERS; there may be more than one correct answer choice.
Cu(s) → Cu2+(aq) + 2 e−
This is an oxidation.
This is a reduction.
This reaction takes place at the anode.
This reaction takes place at the cathode.
Homework Answers
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1. A voltmeter measures the cell potential. True False
2. A half-cell is where a half-reaction...
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...
First fill in your half cell and cell reactions. F in standard cell potentials as you...
First fill in your half cell and cell reactions. F in standard cell potentials as you calculate them. Oxidation at the Anode: The black (.) lead is attached to the electrode, which is the source of electrons. Write the anode half reaction: Reduction at the Cathode: The red lead (+) is attached to the electrode. Write the cathode half reaction: E degree - V. Overall Cell Reaction (Net Ionic equation): Write the overall cell reaction (balance electrons and add together):...
Please help with 1-8 A student measures the potential of a cell made up with 1...
Please help with 1-8
A student measures the potential of a cell made up with 1 M CuSO, in one solution and 1 MAgNO, in the other. There is a copper electrode in the Cuso, and a silver electrode in the AgNO, The student finds the potential of the cell, Eo be 0.45 V, and that the copper electrode is negative. 1. At which electrode is oxidation occurring? 2. Write the half-reaction taking place at the anode: 3. Write the...
Folder# Grade 1. In the voltaic cell shown below, the electrons flow from Zn(s)|Zn²+ (aq)|| Cu"...
Folder# Grade 1. In the voltaic cell shown below, the electrons flow from Zn(s)|Zn²+ (aq)|| Cu" (aq)|Cu(s) Cu(s) (a) Cu(s) ® Zn(s) (b) Zn(s) (c) Zn(s) ® cu (d) Cut ® Zn(s) 2. Which of the following statements about the voltaic cell shown below is correct? Zn(s)[Zn** (aq)|| Cu** (aq) Cu(s) (a) Oxidation takes place at the cathode and reduction takes place at the anode. (b) Oxidation takes place at both the cathode and the anode. (c) Reduction takes place...
how do I get the potential for reduction half-cell? EXP 1O-ELECTROCHEMISTRY Port A 3- Mcasured Veltages...
how do I get the potential for reduction
half-cell?
EXP 1O-ELECTROCHEMISTRY Port A 3- Mcasured Veltages DATA THEORETICAL CELL DESCRIPTION MEASURED ANODE(OXIDATION) CATHODE (REDUCTION) IV OVERALL REACTION CO t A 6.3- Reduction Half-cell REDUCTION HALF-CELL REACTION | Cu2+(aq) + POTENTIAL 0.00 v 2 e.? Cu(s) 24 ?.
3. A student connects a Cd?"(0.20 M)|Cd(s) half-cell to a Cu?"(1 M) Cu(s) electrode. When the...
3. A student connects a Cd?"(0.20 M)|Cd(s) half-cell to a Cu?"(1 M) Cu(s) electrode. When the red lead is attached to the Cu electrode, the cell potential read by the voltmeter, E is +0.77 V. a. What is the reduction half-reaction at the cathode (red lead)? b. What is the oxidation half-reaction at the anode (black lead)? c. What is the overall cell reaction? d. Write the expression for the thermodynamic reaction quotient, Q, and calculate its value for this...
A standard galvanic cell is constructed in which a Cu2+ Cu half cell acts as the...
A standard galvanic cell is constructed in which a Cu2+ Cu half cell acts as the cathode. Which of the following statements are correct? Hint: Refer to a table of standard reduction potentials. (Choose all that apply.) The cathode reaction is Cu -> Cu2+ + 2e The anode reaction could be Fe -> Fe2+ + 2e The anode compartment could be Aglag. Cu2+ is reduced at the cathode. In the external circuit, electrons flow from the other compartment to the...
A student measures the potential of a cell m in the other. There is a copper...
A student measures the potential of a cell m in the other. There is a copper electrode in the CuSO, and a silver electro student finds the potential of the cell, Ecall to be 0. e potential of a cell made up with 1 M Cuso, in one solution and 1 M AgNO, the Cuso, and a silver electrode in the AgNO,. The otential of the cell, E., to be 0.47 V, and that the copper electrode is negative. 1....
A voltaic electrochemical cell is constructed in which the anode is a Pb2+Pb half cell and...
A voltaic electrochemical cell is constructed in which the anode is a Pb2+Pb half cell and the cathode is a Cu2+, Cu+ half cell. The half-cell compartments are connected by a salt bridge. Write the anode reaction. ___+______---->_____ +______ Write the cathode reaction. ______+________---->______ +_____ Write the net cell reaction. _______+_______------>______ +_______ In the external circuit, electrons migrate_____(from or to) the Pb2+Pb electrode ______ (from or to) the Cu2+, Cu+ electrode. In the salt bridge, anions migrate______ (from or to)...
A) The half-cell is a chamber in the voltaic cell where one half-cell is the site...
A) The half-cell is a chamber in the voltaic cell where one half-cell is the site of the oxidation reaction and the other half-cell is the site of the reduction reaction. Type the half-cell reaction that takes place at the anode for the chromium-silver voltaic cell. Indicate the physical states of atoms and ions using the abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively. Use (aq) for an aqueous solution. Do not include phases for electrons. Express...
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...
First fill in your half cell and cell reactions. F in standard cell potentials as you calculate them. Oxidation at the Anode: The black (.) lead is attached to the electrode, which is the source of electrons. Write the anode half reaction: Reduction at the Cathode: The red lead (+) is attached to the electrode. Write the cathode half reaction: E degree - V. Overall Cell Reaction (Net Ionic equation): Write the overall cell reaction (balance electrons and add together):...
Please help with 1-8
A student measures the potential of a cell made up with 1 M CuSO, in one solution and 1 MAgNO, in the other. There is a copper electrode in the Cuso, and a silver electrode in the AgNO, The student finds the potential of the cell, Eo be 0.45 V, and that the copper electrode is negative. 1. At which electrode is oxidation occurring? 2. Write the half-reaction taking place at the anode: 3. Write the...
Folder# Grade 1. In the voltaic cell shown below, the electrons flow from Zn(s)|Zn²+ (aq)|| Cu" (aq)|Cu(s) Cu(s) (a) Cu(s) ® Zn(s) (b) Zn(s) (c) Zn(s) ® cu (d) Cut ® Zn(s) 2. Which of the following statements about the voltaic cell shown below is correct? Zn(s)[Zn** (aq)|| Cu** (aq) Cu(s) (a) Oxidation takes place at the cathode and reduction takes place at the anode. (b) Oxidation takes place at both the cathode and the anode. (c) Reduction takes place...
how do I get the potential for reduction
half-cell?
EXP 1O-ELECTROCHEMISTRY Port A 3- Mcasured Veltages DATA THEORETICAL CELL DESCRIPTION MEASURED ANODE(OXIDATION) CATHODE (REDUCTION) IV OVERALL REACTION CO t A 6.3- Reduction Half-cell REDUCTION HALF-CELL REACTION | Cu2+(aq) + POTENTIAL 0.00 v 2 e.? Cu(s) 24 ?.
3. A student connects a Cd?"(0.20 M)|Cd(s) half-cell to a Cu?"(1 M) Cu(s) electrode. When the red lead is attached to the Cu electrode, the cell potential read by the voltmeter, E is +0.77 V. a. What is the reduction half-reaction at the cathode (red lead)? b. What is the oxidation half-reaction at the anode (black lead)? c. What is the overall cell reaction? d. Write the expression for the thermodynamic reaction quotient, Q, and calculate its value for this...
A standard galvanic cell is constructed in which a Cu2+ Cu half cell acts as the cathode. Which of the following statements are correct? Hint: Refer to a table of standard reduction potentials. (Choose all that apply.) The cathode reaction is Cu -> Cu2+ + 2e The anode reaction could be Fe -> Fe2+ + 2e The anode compartment could be Aglag. Cu2+ is reduced at the cathode. In the external circuit, electrons flow from the other compartment to the...
A student measures the potential of a cell m in the other. There is a copper electrode in the CuSO, and a silver electro student finds the potential of the cell, Ecall to be 0. e potential of a cell made up with 1 M Cuso, in one solution and 1 M AgNO, the Cuso, and a silver electrode in the AgNO,. The otential of the cell, E., to be 0.47 V, and that the copper electrode is negative. 1....
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