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When the following reaction is balanced under basic conditions, what is the ratio of the coefficients...
use the example to answer 8,9,10&11 Here's an example: Balance the following redox reaction, which occurs...
use the example to answer
8,9,10&11
Here's an example: Balance the following redox reaction, which occurs in acidic solution: Fe (aq)+ MnO4'(aq) -Fe (aq) + Mn (aq) Solution: +2 +7 +3 Step 1) +2 Fe2 (aq)+ MnOa (aq) Fe(aq) + Mn2 (aq) Fe (aq) MnO4 (aq) Mn2 (aq) 1 Fe on each side; 1 Mn on each side; no adjustment necessary Fe2 (aq) Fe 3'(aq) + e 5 e + MnO4(aq) Fe (aq) Fe (aq) + e (2+ on each...
Question 3 Write the balanced half-reaction for the reduction of permanganate ion to Mn- in an...
Question 3 Write the balanced half-reaction for the reduction of permanganate ion to Mn- in an acidic solution MnO4 (aq) +SH+ (aq) + 5e Mn2-(aq) + 4H2O(1) MnO, (aq) + 4H+ (aq) - 31 --Mn-(ag) - 40H(aq) MnO4 (aq) + 5e – Mn"(aq) + 202(g) MnO,- (aq) - 8H+ (aq) — Mn2+(ag) - 4H2O() Mno"(aq) + 4H+ (aq) - 5e – Mn?-(aq) - 40H(aq)
What is the expected standard cell potential for the following unbalanced reaction under basic conditions? MnO4-(aq)...
What is the expected standard cell potential for the following unbalanced reaction under basic conditions? MnO4-(aq) + Fe+2(aq) ⟶ Fe+3 (aq) + MnO2(s) Given: Fe3+ + e− ⟶ Fe2+ E1/2= 0.771 MnO4−+ 2 H2O + 3e− ⟶ MnO2 + 4OH− E1/2 = 0.558 A. -0.213 V B. +0.213 V C. -1.329 V D. +1.329 V E. None of the above
Balance the following half reactions using the lowest possible whole number coefficients, in basic conditions. (Enter...
Balance the following half reactions using the lowest possible whole number coefficients, in basic conditions. (Enter coefficients for one and zero- blanks will be marked incorrect.) ClO2−(aq) + H2O(l) + OH−(aq) + e− ⇌ Cl−(aq) + H2O(l) + OH−(aq) + e− MnO42−(aq) + H2O(l) + OH−(aq) + e− ⇌ MnO2(s) + H2O(l) + OH−(aq) + e−
When the reaction Mn 2+(aq) + MnO4 - (aq) <=> MnO2(s) is balanced in acidic solution,...
When the reaction Mn 2+(aq) + MnO4 - (aq) <=> MnO2(s) is balanced in acidic solution, what is the coefficient of H2O?
We consider two half cells: Half cell A comprises a platinum electrode immersed in an aqueous...
We consider two half
cells:
Half cell A comprises a platinum electrode immersed in an
aqueous solution containing Mn2+ (10 mM) and MnO4- (4
mM) ions at pH=4.
Half cell B is constructed with a silver electrode immersed in an
aqueous potassium chromate solution (8 mM) in the presence
of solid Ag2CrO4. The pH of this half cell B is pH=9.
Both half cells are connected with a salt bridge. The voltage of
the cell is measured at 25°C: it...
For all of the following experiments, under standard conditions, which species could be spontaneously produced? A...
For all of the following
experiments, under standard conditions, which species could be
spontaneously produced?
A lead wire is placed in a solution containing
Cu2+
yes no Cu
yes no PbO2
yes no No reaction
Crystals of I2 are added to a solution of
NaCl.
yes no I-
yes no No reaction
yes no Cl2
A silver wire is placed in a solution containing
Cu2+
no yes Cu
no yes No reaction
no yes Ag+
Half-Reaction 8° (V) Half-Reaction 8° (V) 2.87 1.99 1.82 1.78 1.70 1.69 1.68 1.60...
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...
What is the equilibrium constant K at 25°C for an electrochemical cell when E° = +0.0140...
What is the equilibrium constant K at 25°C for an electrochemical cell when E° = +0.0140 V and n = 2? (F = 96,500 J/(V•mol), R = 8.314 J/ (mol·K)) 0.3353 1 2 3 x 4 5 6 с 7 00 9 O +/- x 100 Complete and balance the following redox reaction in basic solution MnO4 (aq) + C2042-(aq) → MnO2 (s) + CO2(g) 3C22 Reset < > х 1 2 3 4 5 6 7 8 9 0...
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...
use the example to answer
8,9,10&11
Here's an example: Balance the following redox reaction, which occurs in acidic solution: Fe (aq)+ MnO4'(aq) -Fe (aq) + Mn (aq) Solution: +2 +7 +3 Step 1) +2 Fe2 (aq)+ MnOa (aq) Fe(aq) + Mn2 (aq) Fe (aq) MnO4 (aq) Mn2 (aq) 1 Fe on each side; 1 Mn on each side; no adjustment necessary Fe2 (aq) Fe 3'(aq) + e 5 e + MnO4(aq) Fe (aq) Fe (aq) + e (2+ on each...
Question 3 Write the balanced half-reaction for the reduction of permanganate ion to Mn- in an acidic solution MnO4 (aq) +SH+ (aq) + 5e Mn2-(aq) + 4H2O(1) MnO, (aq) + 4H+ (aq) - 31 --Mn-(ag) - 40H(aq) MnO4 (aq) + 5e – Mn"(aq) + 202(g) MnO,- (aq) - 8H+ (aq) — Mn2+(ag) - 4H2O() Mno"(aq) + 4H+ (aq) - 5e – Mn?-(aq) - 40H(aq)
We consider two half
cells:
Half cell A comprises a platinum electrode immersed in an
aqueous solution containing Mn2+ (10 mM) and MnO4- (4
mM) ions at pH=4.
Half cell B is constructed with a silver electrode immersed in an
aqueous potassium chromate solution (8 mM) in the presence
of solid Ag2CrO4. The pH of this half cell B is pH=9.
Both half cells are connected with a salt bridge. The voltage of
the cell is measured at 25°C: it...
For all of the following
experiments, under standard conditions, which species could be
spontaneously produced?
A lead wire is placed in a solution containing
Cu2+
yes no Cu
yes no PbO2
yes no No reaction
Crystals of I2 are added to a solution of
NaCl.
yes no I-
yes no No reaction
yes no Cl2
A silver wire is placed in a solution containing
Cu2+
no yes Cu
no yes No reaction
no yes Ag+
Half-Reaction 8° (V) Half-Reaction 8° (V) 2.87 1.99 1.82 1.78 1.70 1.69 1.68 1.60...
What is the equilibrium constant K at 25°C for an electrochemical cell when E° = +0.0140 V and n = 2? (F = 96,500 J/(V•mol), R = 8.314 J/ (mol·K)) 0.3353 1 2 3 x 4 5 6 с 7 00 9 O +/- x 100 Complete and balance the following redox reaction in basic solution MnO4 (aq) + C2042-(aq) → MnO2 (s) + CO2(g) 3C22 Reset < > х 1 2 3 4 5 6 7 8 9 0...
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