Homework Answers
1)
a)
Oxidation takes place on Anode.
The one with smaller Eo value will be oxidised.
So, the anode reaction is:
Ni(s) —> Ni2+(aq) + 2 e-
b)
Reduction takes place on Cathode.
The one with greater Eo value will be reduced.
So, the Cathode reaction is:
I2(s) + 2e- —> 2 I-(aq)
C)
Overall reaction is:
Ni(s) + I2(s) -> Ni2+(aq) + 2 I-(aq)
d)
Eo cell = Eo cathode - Eo anode
= 0.535 V - (-0.250 V)
= 0.785 V
Answer: 0.785 V
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Use the References to access important values if needed for this question. Enter electrons as e A voltaic cell is const...
Enter electrons as e red 2.870V). A voltaic cell is constructed from a standard Ni? Ni...
Enter electrons as e red 2.870V). A voltaic cell is constructed from a standard Ni? Ni half cell (Ered -0.250V) and a standard F2/F half cell (E° (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (). If a box is not needed, leave it blank.) The anode reaction is: + The cathode reaction is: + <> The spontaneous cell reaction is: + The cell voltage is
Enter electrons as e A voltaic cell is constructed from a standard Fe? Fe half cell...
Enter electrons as e A voltaic cell is constructed from a standard Fe? Fe half cell (Ered -0.440V) and a standard Izt half cell (Ered -0.535V). (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: The spontaneous cell reaction is: The cell voltage is Enter electrons as e. Use smallest possible integer coefficients. If a...
A) B) C) Use the References to access important values if needed for this question. Enter...
A)
B)
C)
Use the References to access important values if needed for this question. Enter electrons as e. Use smallest possible integer coefficients. If a box is not needed, leave it blank. A voltaic cell is constructed from a standard Fe2+ Fe half cell (Eºred = -0.440V) and a standard Mn2+ Mn half cell (Eºred =-1.180V). The anode reaction is: The cathode reaction is: The spontaneous cell reaction is: The cell voltage is V. Submit Answer Retry Entire Group...
A voltaic cell is constructed from a standard Co2+ Co half cell (Eºred = -0.280V) and...
A voltaic cell is constructed from a standard Co2+ Co half cell (Eºred = -0.280V) and a standard Ar Al half cell (Ered=-1.660V The anode reaction is: The cathode reaction is: The spontaneous cell reaction is: The cell voltage is Enter electrons as e A voltaic cell is constructed from a standard Ni Ni half cell (Ered -0.250V) and a standard BryBr half cell (Ered =1.080V). (Use the lowest possible coefficients. Use the pull down boxes to specify states such...
Use the References to access important values if needed for this question. Enter electrons as e...
Use the References to access important values if needed for this question. Enter electrons as e A voltaic cell is constructed in which the anode is a ZnZn* half cell and the cathode is a Cu Cut half cell. The half-cell compartments are connected by a salt bridge (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (3) If a box is not needed, leave it blank.) The anode reaction is: The cathode...
Use the References to access important values if needed for this question. A student measures the...
Use the References to access important values if needed for this question. A student measures the Fe3+ concentration in a saturated aqueous solution of iron(III) hydroxide to be 2.16-10-10 M. Based on her data, the solubility product constant for iron(III) hydroxide is A voltaic cell is constructed from a standard H2 half cell (Ered = 0.000V) and a standard Ar+ Al half cell (Ered=-1.660V). The anode reaction is + The cathode reaction is: + The spontaneous cell reaction is: -...
Enter electrons as e'. A voltaic cell is constructed from a standard Al?*Al half cell (Ered...
Enter electrons as e'. A voltaic cell is constructed from a standard Al?*Al half cell (Ered - -1.660V) and a standard F2F half cell (Ered 2.870V). (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or ($). If a box is not needed, leave it blank.) The anode reaction is: + The cathode reaction is: The spontaneous cell reaction is: The cell voltage is V.
Enter electrons as e A voltaic cell is constructed from a standard Hg Hg half cell...
Enter electrons as e A voltaic cell is constructed from a standard Hg Hg half cell (Ered 0.855V) and a standard F2 F half cell (Ered 2.870V). (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (ag) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: The spontaneous cell reaction is: The cell voltage is V
Enter electrons as e. Use smallest possible integer coefficients. If a box is not needed, leave...
Enter electrons as e. Use smallest possible integer coefficients. If a box is not needed, leave it blank. A voltaic cell is constructed from a standard Hg2+ Hg half cell (Eºred = 0.855V) and a standard Ni2+ Ni half cell (Ered = -0.250V). The anode reaction is: + The cathode reaction is: + + The spontaneous cell reaction is: + + The cell voltage is
Use the References to access important values if needed for this question. Enter electrons as e....
Use the References to access important values if needed for this question. Enter electrons as e. Use smallest possible integer coefficients. If a box is not needed, leave it blank A voltaic cell is constructed from a standard Hg2*jHg half cell (Ered 0.855V) and a standard Cr3|Cr half cell (Eored --0.740V) The anode reaction is: The cathode reaction is: The spontaneous cell reaction is The cell voltage is V.
Enter electrons as e red 2.870V). A voltaic cell is constructed from a standard Ni? Ni half cell (Ered -0.250V) and a standard F2/F half cell (E° (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (). If a box is not needed, leave it blank.) The anode reaction is: + The cathode reaction is: + <> The spontaneous cell reaction is: + The cell voltage is
Enter electrons as e A voltaic cell is constructed from a standard Fe? Fe half cell (Ered -0.440V) and a standard Izt half cell (Ered -0.535V). (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: The spontaneous cell reaction is: The cell voltage is Enter electrons as e. Use smallest possible integer coefficients. If a...
A)
B)
C)
Use the References to access important values if needed for this question. Enter electrons as e. Use smallest possible integer coefficients. If a box is not needed, leave it blank. A voltaic cell is constructed from a standard Fe2+ Fe half cell (Eºred = -0.440V) and a standard Mn2+ Mn half cell (Eºred =-1.180V). The anode reaction is: The cathode reaction is: The spontaneous cell reaction is: The cell voltage is V. Submit Answer Retry Entire Group...
A voltaic cell is constructed from a standard Co2+ Co half cell (Eºred = -0.280V) and a standard Ar Al half cell (Ered=-1.660V The anode reaction is: The cathode reaction is: The spontaneous cell reaction is: The cell voltage is Enter electrons as e A voltaic cell is constructed from a standard Ni Ni half cell (Ered -0.250V) and a standard BryBr half cell (Ered =1.080V). (Use the lowest possible coefficients. Use the pull down boxes to specify states such...
Use the References to access important values if needed for this question. Enter electrons as e A voltaic cell is constructed in which the anode is a ZnZn* half cell and the cathode is a Cu Cut half cell. The half-cell compartments are connected by a salt bridge (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (3) If a box is not needed, leave it blank.) The anode reaction is: The cathode...
Use the References to access important values if needed for this question. A student measures the Fe3+ concentration in a saturated aqueous solution of iron(III) hydroxide to be 2.16-10-10 M. Based on her data, the solubility product constant for iron(III) hydroxide is A voltaic cell is constructed from a standard H2 half cell (Ered = 0.000V) and a standard Ar+ Al half cell (Ered=-1.660V). The anode reaction is + The cathode reaction is: + The spontaneous cell reaction is: -...
Enter electrons as e'. A voltaic cell is constructed from a standard Al?*Al half cell (Ered - -1.660V) and a standard F2F half cell (Ered 2.870V). (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or ($). If a box is not needed, leave it blank.) The anode reaction is: + The cathode reaction is: The spontaneous cell reaction is: The cell voltage is V.
Enter electrons as e A voltaic cell is constructed from a standard Hg Hg half cell (Ered 0.855V) and a standard F2 F half cell (Ered 2.870V). (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (ag) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: The spontaneous cell reaction is: The cell voltage is V
Enter electrons as e. Use smallest possible integer coefficients. If a box is not needed, leave it blank. A voltaic cell is constructed from a standard Hg2+ Hg half cell (Eºred = 0.855V) and a standard Ni2+ Ni half cell (Ered = -0.250V). The anode reaction is: + The cathode reaction is: + + The spontaneous cell reaction is: + + The cell voltage is
Use the References to access important values if needed for this question. Enter electrons as e. Use smallest possible integer coefficients. If a box is not needed, leave it blank A voltaic cell is constructed from a standard Hg2*jHg half cell (Ered 0.855V) and a standard Cr3|Cr half cell (Eored --0.740V) The anode reaction is: The cathode reaction is: The spontaneous cell reaction is The cell voltage is V.
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