C)
Homework Answers
Lower the value of standard reduction potential, then the given electrode acts as anode and higher the value of standard reduction potential, then the given electrode acts as cathode.
A. The anode half reaction (oxidation): Mn(s) -----> Mn2+(aq) + 2e-
The cathode half reaction (reduction): Fe2+(aq) + 2e- ---> Fe(s)
The spontaneous cell reaction : Mn(s) +
Fe2+(aq) ---> Mn2+(aq) + Fe(s)
E0cell = Ec - Ea = -0.440-(-1.180) = 0.74 V
E0 cell > 0
B. The anode half reaction (oxidation): Cd(s) -----> Cd2+(aq) + 2e-
The cathode half reaction (reduction): Fe3+(aq) + 1e- ---> Fe2+(aq)
The spontaneous
cell reaction : Cd(s) + 2Fe3+(aq) ---> Cd2+(aq) +
2Fe2+(aq)
E0cell = Ec - Ea = 0.771-(-0.403) = 1.174 V
E0 cell > 0
C. The anode half reaction (oxidation): H2(g) -----> 2H+(aq) + 2e-
The cathode half reaction (reduction): Fe3+(aq) + 1e- ---> Fe2+(aq)
The spontaneous
cell reaction : H2(g) + 2Fe3+(aq) ---> 2H+(aq) +
2Fe2+(aq)
E0cell = Ec - Ea = 0.771-(0) = 0.771
V
E0 cell > 0
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Use the References to access important values if needed for this question. Enter...
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 Ag+ Ag half cell (E° red = 0.799V) and a standard Mg2+ Mg half cell (E° red - -2.370V). The anode reaction is: The cathode reaction is: V + The spontaneous cell reaction is: V + The cell voltage is Submit Answer Retry Entire Group 4 more group attempts remaining Next Enter electrons as...
Enter electrons as e". Use smallest possible integer coefficients. | If a box is not needed,...
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 Cd2+|Cd half cell (Eºred = -0.403V) and a standard Br2|Brhalf cell (Eºred = 1.080V). 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 box is not needed, leave it blank. A voltaic cell...
Important values if needed for this question. Enter electrons as e Use smallest possible integer coefficients....
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 (Ered = -0.440V) and a standard Cu2+ Cu half cell (Ered 0.337V). The anode reaction is: v V The cathode reaction is: + > V The spontaneous cell reaction is: + The cell voltage is V. Submit Answer Retry Entire Group 4 more...
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 for ALL reactions. If a box is not needed, leave it blank. A voltaic cell is constructed in which the following cell reaction occurs. The half-cell compartments are connected by a salt bridge. Ag+ (aq) + Fe2+(aq) — Ag(s) + Fe2+ (aq) The anode reaction is: The cathode reaction is: In the external circuit, electrons migrate the Fe2+ Felt...
Use the References to access important values if needed for this question. Enter electrons as e A voltaic cell is const...
Use the References to access important values if needed for this question. Enter electrons as e A voltaic cell is constructed from a standard Ni2+ Ni half cell (Ered = -0.250V) and a standard II half cell (Ered = 0.535V). (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...
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.
please help with these and write their phases Enter electrons as e. Use smallest possible integer coefficients. If...
please help with these and write their phases
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 Mg2+Mg half cell (Ered = -2.370V) and a standard Hg2+ Hg half cell (Eºred=0.855V). 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 Hg2+ Hg...
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 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 Hg? Hg half cell (Ered=0.855V) and a standard Pb2Pb half cell (E®red = -0.126V). 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 Hg? Hg half cell (Ered=0.855V) and a standard F;F half cell...
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
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 Ag+ Ag half cell (E° red = 0.799V) and a standard Mg2+ Mg half cell (E° red - -2.370V). The anode reaction is: The cathode reaction is: V + The spontaneous cell reaction is: V + The cell voltage is Submit Answer Retry Entire Group 4 more group attempts remaining Next Enter electrons as...
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 Cd2+|Cd half cell (Eºred = -0.403V) and a standard Br2|Brhalf cell (Eºred = 1.080V). 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 box is not needed, leave it blank. A voltaic cell...
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 (Ered = -0.440V) and a standard Cu2+ Cu half cell (Ered 0.337V). The anode reaction is: v V The cathode reaction is: + > V The spontaneous cell reaction is: + The cell voltage is V. Submit Answer Retry Entire Group 4 more...
Use the References to access important values if needed for this question. Enter electrons as e Use smallest possible integer coefficients for ALL reactions. If a box is not needed, leave it blank. A voltaic cell is constructed in which the following cell reaction occurs. The half-cell compartments are connected by a salt bridge. Ag+ (aq) + Fe2+(aq) — Ag(s) + Fe2+ (aq) The anode reaction is: The cathode reaction is: In the external circuit, electrons migrate the Fe2+ Felt...
Use the References to access important values if needed for this question. Enter electrons as e A voltaic cell is constructed from a standard Ni2+ Ni half cell (Ered = -0.250V) and a standard II half cell (Ered = 0.535V). (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...
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.
please help with these and write their phases
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 Mg2+Mg half cell (Ered = -2.370V) and a standard Hg2+ Hg half cell (Eºred=0.855V). 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 Hg2+ Hg...
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 Use smallest possible integer coefficients. If a box is not needed, leave it blank. A voltaic cell is constructed from a standard Hg? Hg half cell (Ered=0.855V) and a standard Pb2Pb half cell (E®red = -0.126V). 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 Hg? Hg half cell (Ered=0.855V) and a standard F;F half cell...
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
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