PS12.1. Balance the following oxidation-reduction reactions using the half-reaction method. a) S2-(aq) + NO3-(aq) ---> S8(s)...

Question

Question

PS12.1. Balance the following oxidation-reduction reactions using the half-reaction method. a) S2-(aq) + NO3-(aq) ---> S8(s)...

PS12.1. Balance the following oxidation-reduction reactions using the half-reaction method.

a) S^2-(aq) + NO₃^-(aq) ---> S₈(s) + NO₂(g) acidic solution

science chemistry

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

S2-(aq) + NO3-(aq) ---> S8(s) + NO2(g)

For the reaction:

S-2 ---> S8

Balance S

8S-2 ---> S8

Balace electrons

8S-2 ---> S8 + 16e-

For reaction:

NO3- ---> NO2

Balance NO3

NO3- + 2H+ --> NO2 + H2O

Balance Electrons

NO3-(aq) + 1e- + 2H+(aq) -----> NO2(g) + H2O(l)

NOW... Balance Both equations simultaneously

8S-2 ---> S8 + 16e- (1)

16[ NO3-(aq) + 1e- + 2H+(aq) -----> NO2(g) + H2O(l) ]

16NO3-(aq) + 16e- + 32H+(aq) -----> 16NO2(g) + 16H2O(l) (2)

Add equation (1) and (2)

8S-2(aq) 16NO3-(aq) + 16e- + 32H+(aq) ---> S8(s) + 16e- 16NO2(g) + 16H2O(l)

electron cancel each other

8S-2(aq) + 16NO3-(aq) + 32H+(aq) ---> S8(s) + 16NO2(g) + 16H2O(l)

Add a comment

Answer 2

Similar Homework Help Questions

Balance the following oxidation-reduction reaction using the ion-electron method: NO3-+ S -->NO2 + SO42-. This reaction...

Balance the following oxidation-reduction reaction using the ion-electron method: NO3-+ S -->NO2 + SO42-. This reaction occurs in acidic solution. 9.
Balance the following oxidation-reduction reactions using the half-reaction method. 1. HCOOH (aq) + MnO.. (aq) → CO2 (g) + Mn2. Acidie solution Identify the reduction half Identify the oxidation...

Balance the following oxidation-reduction reactions using the half-reaction method. 1. HCOOH (aq) + MnO.. (aq) → CO2 (g) + Mn2. Acidie solution Identify the reduction half Identify the oxidation half Basic solution Identify the reduction half Identify the oxidation half Write a balanced equation for the electrode and overall cell reactions in the following galvanic cell and determine E°. Sketch the cell, labeling the anode and cathode and showing the direction of electron and ion flow. 2. 3. Circle the...
2. Balance the following oxidation-reduction reactions that occur in acidic solution using the half-reaction method a....

2. Balance the following oxidation-reduction reactions that occur in acidic solution using the half-reaction method a. Cu(s) + NO, (aa)Cu2 (aa) NOGg) h. Cr,0, (aa) C (a) Cr (a)C2(g) c. Pb(s) + PbO2(s) + H2S04(aq) PbSO,(s) d. Mn(a) NaBio,()Bi (aa) + Mn04 (aq)

In addition to mass balance, oxidation-reduction reactions must be balanced such that the number of electrons...

In addition to mass balance, oxidation-reduction reactions must be balanced such that the number of electrons lost in the oxidation equals the number of electrons gained in the reduction. This balancing can be done by two methods: the half-reaction method or the oxidation number method. The half-reaction method balances the electrons lost in the oxidation half-reaction with the electrons gained in the reduction half-reaction. In either method H2O(l), OH?(aq), and H+(aq) may be added to complete the mass balance. Which...
1. (a) Balance the following half-reactions by the ion-electron half-reaction method: (i) (acid solution) NO3- (aq)...

1. (a) Balance the following half-reactions by the ion-electron half-reaction method: (i) (acid solution) NO3- (aq) + N2O (g) (ii) (acid solution) Fe042- (aq) + Fe3+ (aq) (iii) (base solution) Fe203 () → Fe(OH)2 (S) (iv) (base solution) Cu20 (s) + Cu(OH)2 (S) (b) Which of the above equations are oxidation half-reactions? (c) Give the formulas of the reactants that become oxidized in the course of the reaction.
balance the following half-reactions. In each case indicate whether the half-reaction is an oxidation or a...

balance the following half-reactions. In each case indicate whether the half-reaction is an oxidation or a reduction. TiO2(s)?Ti2+(aq) (acidic solution) ClO?3(aq)?Cl?(aq) (acidic solution)

1. (a) Balance the following half-reactions by the ion-electron half-reaction method: (i) (acid solution) NO2 (g)...

1. (a) Balance the following half-reactions by the ion-electron half-reaction method: (i) (acid solution) NO2 (g) → NO3 – (aq) (ii) (acid solution) H2SeO3 (aq) → Se (s) (iii) (base solution) P4 (s) → PH3 (g) (iv) (base solution) Co(OH)3 (s) → CoO2 (s) (b) Which of the above equations are oxidation half-reactions? (c) Give the formulas of the reactants that become oxidized in the course of the reaction.
1.a) Balance the following half-reactions by the ion-electron half-reaction method: (i) (acid solution) NO2 (g) →...

1.a) Balance the following half-reactions by the ion-electron half-reaction method: (i) (acid solution) NO2 (g) → NO3– (aq) (ii) (acid solution) H2SeO3 (aq) → Se (s) (iii) (base solution) P4 (s) → PH3 (g) (iv) (base solution) Co(OH)3 (s) → CoO2 (s) (b) Which of the above equations are oxidation half-reactions? (c) Give the formulas of the reactants that become oxidized in the course of the reaction.
what is the reduction half reaction, oxidation half reaction, and overall balance redox reaction? b. K2Cr2O7(aq)...

what is the reduction half reaction, oxidation half reaction, and overall balance redox reaction? b. K2Cr2O7(aq) (ACIDIC) + CO(NO3)2(aq)

In addition to mass balance, oxidation-reduction reactions must be balanced such that the number of electrons...

In addition to mass balance, oxidation-reduction reactions must be balanced such that the number of electrons lost in the oxidation equals the number of electrons gained in the reduction. This balancing can be done by two methods: the half-reaction method or the oxidation number method. The half-reaction method balances the electrons lost in the oxidation half-reaction with the electrons gained in the reduction half-reaction. In either method H2O(l), OH−(aq), and H+(aq) may be added to complete the mass balance. Which...

PS12.1. Balance the following oxidation-reduction reactions using the half-reaction method. a) S2-(aq) + NO3-(aq) ---> S8(s)...

Homework Answers

Add Answer to:
PS12.1. Balance the following oxidation-reduction reactions using the half-reaction method. a) S2-(aq) + NO3-(aq) ---> S8(s)...

Post as a guest

Earn Coins

Balance the following oxidation-reduction reaction using the ion-electron method: NO3-+ S -->NO2 + SO42-. This reaction...

Balance the following oxidation-reduction reactions using the half-reaction method. 1. HCOOH (aq) + MnO.. (aq) → CO2 (g) + Mn2. Acidie solution Identify the reduction half Identify the oxidation...

2. Balance the following oxidation-reduction reactions that occur in acidic solution using the half-reaction method a....

In addition to mass balance, oxidation-reduction reactions must be balanced such that the number of electrons...

1. (a) Balance the following half-reactions by the ion-electron half-reaction method: (i) (acid solution) NO3- (aq)...

balance the following half-reactions. In each case indicate whether the half-reaction is an oxidation or a...

1. (a) Balance the following half-reactions by the ion-electron half-reaction method: (i) (acid solution) NO2 (g)...

1.a) Balance the following half-reactions by the ion-electron half-reaction method: (i) (acid solution) NO2 (g) →...

what is the reduction half reaction, oxidation half reaction, and overall balance redox reaction? b. K2Cr2O7(aq)...

In addition to mass balance, oxidation-reduction reactions must be balanced such that the number of electrons...

PS12.1. Balance the following oxidation-reduction reactions using the half-reaction method. a) S2-(aq) + NO3-(aq) ---> S8(s)...

Homework Answers

Add Answer to: PS12.1. Balance the following oxidation-reduction reactions using the half-reaction method. a) S2-(aq) + NO3-(aq) ---> S8(s)...

Post as a guest

Earn Coins

Add Answer to:
PS12.1. Balance the following oxidation-reduction reactions using the half-reaction method. a) S2-(aq) + NO3-(aq) ---> S8(s)...