Homework Answers
using the given equation and using the standard reduction potential to find the required information.
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QUESTION 2 For the reaction: 2 In (s) + 6 H*(aq) → 2 In3+(aq) + 3...
Question 6 (1 point) Saved The standard potential of the cell In(s) | In3+ (aq) ||...
Question 6 (1 point) Saved The standard potential of the cell In(s) | In3+ (aq) || Cu2+(aq) | Cu(s) is +0.68 V at 25°C. If the standard reduction potential of the Cu2+1Cu couple is +0.34 V, calculate the standard reduction potential of the In3+|In couple. O +1.02 V © -0.34 v 0 -0.23 V 0 +0.34 V 0-0.68 V
Separate galvanic cells are made from the following half-cells: cell 1: H+(aq)/H2(g) and Pb2+(aq)/Pb(s) cell 2:...
Separate galvanic cells are made from the following half-cells: cell 1: H+(aq)/H2(g) and Pb2+(aq)/Pb(s) cell 2: Fe2+(aq)/Fe(s) and Zn2+(aq)/Zn(s) Which of the following is correct for the working cells? Standard reduction potentials, 298 K, Aqueous Solution (pH = 0): Cl2(g) + 2e --> 2C1-(aq); E° = +1.36 V Fe3+(aq) + e --> Fe2+(aq); E° = +0.77 V Cu2+(aq) + 2e --> Cu(s); E° = +0.34 V 2H+(aq) + 2e --> H2(g); E° = 0.00 V Pb2+(aq) + 2e --> Pb(s);...
Part III: Oxidation and Reduction of H2O2 1. Reduction of H2O2: H2O2(aq) + Cr(OH)3(S) (BASIC) •...
Part III: Oxidation and Reduction of H2O2 1. Reduction of H2O2: H2O2(aq) + Cr(OH)3(S) (BASIC) • Observations · Evidence of the oxidation of Cr3+ • Reduction Half Reaction • Oxidation Half Reaction • Overall Balanced Redox Reaction · Explain occurrence or non-occurrence of reaction by calculating cell. 2. Oxidation of H2O2: H2O2(aq) + FeCl3(aq) • Observations • Evidence of the oxidation of H2O2 • Reduction Half Reaction • Oxidation Half Reaction • Overall Balanced Redox Reaction • Explain occurrence or...
of Write the balanced oxidation half-reaction for the following overall reaction: 2 H+ (aq) + Ca(s)...
of Write the balanced oxidation half-reaction for the following overall reaction: 2 H+ (aq) + Ca(s) → Ca2+(aq) + H2(g) Select one: a. H2(g) → 2 H (aq) + 2e Ob. 2 H(aq) - Halg) +2e c. none of the above d. Ca(s) + 2e + Calt (aq) MacBook Air
What is the balanced chemical equation corresponding to the following cell diagram? In(s) | In3+(aq, 1...
What is the balanced chemical equation corresponding to the following cell diagram? In(s) | In3+(aq, 1 M) || Cl-(aq, 1 M) | Cl2(g, 1 atm) | Pt(s) Group of answer choices In(s) + In3+(aq) → 2 Cl-(aq) + Cl2(g) + Pt(s) 2 Cl-(aq) + Cl2(g) → In(s) + In3+(aq) 2 In(s) + 3 Cl2(g) → 2 In3+(aq) + 6 Cl-(aq) In(s) + In3+(aq) → 2 Cl-(aq) + Cl2(g) 2 In3+(aq) + 6 Cl-(aq) → 2 In(s) + 3 Cl2(g)
9. In Part 2 of this experiment, you will observe the reaction of aluminum in an...
9. In Part 2 of this experiment, you will observe the reaction of aluminum in an aqueous CuCl, solution. a) Given the following half-reactions, predict if aluminum will dissolve in a CuCl, solution. A13+ (aq) + 3e + Al(s) E = - 1.70 V Cu2+ (aq) + 2e - → Cu (s) E = 0.34 V b) The more positive the cell potential the more spontaneous the reaction will be. What precautions should you take in performing this experiment if...
Use the tabulated electrode potentials to calculate K for the oxidation of nickel by H+: Ni(s)+2H+(aq)→Ni2+(aq)+H2(g)...
Use the tabulated electrode potentials to calculate K for the oxidation of nickel by H+: Ni(s)+2H+(aq)→Ni2+(aq)+H2(g) Express your answer using two significant figures. Standard reduction half-cell potentials at 25∘C Half-reaction E∘ (V) Half-reaction E∘ (V) Au3+(aq)+3e−→Au(s) 1.50 Fe2+(aq)+2e−→Fe(s) −0.45 Ag+(aq)+e−→Ag(s) 0.80 Cr3+(aq)+e−→Cr2+(aq) −0.50 Fe3+(aq)+3e−→Fe2+(aq) 0.77 Cr3+(aq)+3e−→Cr(s) −0.73 Cu+(aq)+e−→Cu(s) 0.52 Zn2+(aq)+2e−→Zn(s) −0.76 Cu2+(aq)+2e−→Cu(s) 0.34 Mn2+(aq)+2e−→Mn(s) −1.18 2H+(aq)+2e−→H2(g) 0.00 Al3+(aq)+3e−→Al(s) −1.66 Fe3+(aq)+3e−→Fe(s) −0.036 Mg2+(aq)+2e−→Mg(s) −2.37 Pb2+(aq)+2e−→Pb(s) −0.13 Na+(aq)+e−→Na(s) −2.71 Sn2+(aq)+2e−→Sn(s) −0.14 Ca2+(aq)+2e−→Ca(s) −2.76 Ni2+(aq)+2e−→Ni(s) −0.23 Ba2+(aq)+2e−→Ba(s) −2.90 Co2+(aq)+2e−→Co(s) −0.28 K+(aq)+e−→K(s) −2.92 Cd2+(aq)+2e−→Cd(s)...
Consider this reaction: 2 AI (s) + 6 H*(aq) - 2 A1** (aq) + 3 H,...
Consider this reaction: 2 AI (s) + 6 H*(aq) - 2 A1** (aq) + 3 H, (9) Which reactant is the reducing agent and why? Select one or more: a. H (aq), because it is reduced b. Al(s), because it is oxidised c. H (aq), because it is oxidised d. Al(s), because it is reduced The student synthesise aluminum oxide according to this reaction: 4 Al(s) + 30 (9) - 2 A1,03(s) Considering the mass of the limiting reactant she...
1.) Given the following notation for an electrochemical cell Pt(s) | H2(g) | H+(aq) || Ag+(aq)...
1.) Given the following notation for an electrochemical cell Pt(s) | H2(g) | H+(aq) || Ag+(aq) | Ag(s), what is the balanced overall (net) cell reaction? A. H2(g) + 2Ag(s) ® H+(aq) + 2Ag+(aq B. H2(g) + 2Ag+(aq) ® 2H+(aq) + 2Ag(s) C. H2(g) + Ag+(aq) ® H+(aq) + Ag(s D. 2H+(aq) + 2Ag(s) ® H2(g) + 2Ag+(aq) E. 2H+(aq) + 2Ag+(aq) ® H2(g) + 2Ag(s) 2.) Calculate E°cell for the following (nonspontaneous) reaction: Cd(s) + 2Fe3+(aq) ® 2Fe2+(aq) + Cd2+(aq) → A. -0.37...
E6D.3(b) Calculate the standard potential of the cell Pt(s) cystine(aq), cysteine(aq)|| H*(aq)|O2(g)|Pt(s) and the standard Gibbs...
E6D.3(b) Calculate the standard potential of the cell Pt(s) cystine(aq), cysteine(aq)|| H*(aq)|O2(g)|Pt(s) and the standard Gibbs energy of the cell reaction at 25°C. Use EⓇ =-0.34 V for cystine(aq) + 2 H+(aq) + 2e → 2 cysteine(aq).
Question 6 (1 point) Saved The standard potential of the cell In(s) | In3+ (aq) || Cu2+(aq) | Cu(s) is +0.68 V at 25°C. If the standard reduction potential of the Cu2+1Cu couple is +0.34 V, calculate the standard reduction potential of the In3+|In couple. O +1.02 V © -0.34 v 0 -0.23 V 0 +0.34 V 0-0.68 V
Separate galvanic cells are made from the following half-cells: cell 1: H+(aq)/H2(g) and Pb2+(aq)/Pb(s) cell 2: Fe2+(aq)/Fe(s) and Zn2+(aq)/Zn(s) Which of the following is correct for the working cells? Standard reduction potentials, 298 K, Aqueous Solution (pH = 0): Cl2(g) + 2e --> 2C1-(aq); E° = +1.36 V Fe3+(aq) + e --> Fe2+(aq); E° = +0.77 V Cu2+(aq) + 2e --> Cu(s); E° = +0.34 V 2H+(aq) + 2e --> H2(g); E° = 0.00 V Pb2+(aq) + 2e --> Pb(s);...
Part III: Oxidation and Reduction of H2O2 1. Reduction of H2O2: H2O2(aq) + Cr(OH)3(S) (BASIC) • Observations · Evidence of the oxidation of Cr3+ • Reduction Half Reaction • Oxidation Half Reaction • Overall Balanced Redox Reaction · Explain occurrence or non-occurrence of reaction by calculating cell. 2. Oxidation of H2O2: H2O2(aq) + FeCl3(aq) • Observations • Evidence of the oxidation of H2O2 • Reduction Half Reaction • Oxidation Half Reaction • Overall Balanced Redox Reaction • Explain occurrence or...
of Write the balanced oxidation half-reaction for the following overall reaction: 2 H+ (aq) + Ca(s) → Ca2+(aq) + H2(g) Select one: a. H2(g) → 2 H (aq) + 2e Ob. 2 H(aq) - Halg) +2e c. none of the above d. Ca(s) + 2e + Calt (aq) MacBook Air
9. In Part 2 of this experiment, you will observe the reaction of aluminum in an aqueous CuCl, solution. a) Given the following half-reactions, predict if aluminum will dissolve in a CuCl, solution. A13+ (aq) + 3e + Al(s) E = - 1.70 V Cu2+ (aq) + 2e - → Cu (s) E = 0.34 V b) The more positive the cell potential the more spontaneous the reaction will be. What precautions should you take in performing this experiment if...
Consider this reaction: 2 AI (s) + 6 H*(aq) - 2 A1** (aq) + 3 H, (9) Which reactant is the reducing agent and why? Select one or more: a. H (aq), because it is reduced b. Al(s), because it is oxidised c. H (aq), because it is oxidised d. Al(s), because it is reduced The student synthesise aluminum oxide according to this reaction: 4 Al(s) + 30 (9) - 2 A1,03(s) Considering the mass of the limiting reactant she...
E6D.3(b) Calculate the standard potential of the cell Pt(s) cystine(aq), cysteine(aq)|| H*(aq)|O2(g)|Pt(s) and the standard Gibbs energy of the cell reaction at 25°C. Use EⓇ =-0.34 V for cystine(aq) + 2 H+(aq) + 2e → 2 cysteine(aq).
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