Homework Answers
first to calculate E°cell for the reaction using standard reduction potential.
then to find Qc using nernst equation.
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At 74.0 °C, what is the maximum value of the reaction quotient, Q, needed to produce...
At 63.0 ∘C , what is the maximum value of the reaction quotient, Q, needed to...
At 63.0 ∘C , what is the maximum value of the reaction quotient, Q, needed to produce a non-negative Ecell value for the reaction SO42−(aq)+4H+(aq)+2Br−(aq)⇌Br2(l)+SO2(g)+2H2O(l) In other words, what is Q when Ecell=0 at this temperature? Express your answer numerically to two significant figures.
At 69.0 ∘C , what is the maximum value of the reaction quotient, Q, needed to produce a non-negative E value for the reaction SO42−(aq)+4H+(aq)+2Br−(aq)⇌Br2(aq)+SO2(g)+2H2O(l) In other words, what is...
At 69.0 ∘C , what is the maximum value of the reaction quotient, Q, needed to produce a non-negative E value for the reaction SO42−(aq)+4H+(aq)+2Br−(aq)⇌Br2(aq)+SO2(g)+2H2O(l) In other words, what is Q when E=0 at this temperature? Express your answer numerically to two significant figures.
At 58.0 ∘C , what is the maximum value of the reaction quotient, Q, needed to...
At 58.0 ∘C , what is the maximum value of the reaction quotient, Q, needed to produce a non-negative Ecell value for the reaction SO42−(aq)+4H+(aq)+2Br−(aq)⇌Br2(l)+SO2(g)+2H2O(l) In other words, what is Q when Ecell=0 at this temperature? I found that Ecell = 0.87 V and n= 2 −nF(Ecell−E∘cell) / 2.303RT = 2×96485 (0+0.87)/2.303×8.314×331.0 log q = -26.49 I need Q without log
At 59.0 ∘C , what is the maximum value of the reaction quotient, Q, needed to produce a non-negat...
At 59.0 ∘C , what is the maximum value of the reaction quotient, Q, needed to produce a non-negative E value for the reaction SO42−(aq)+4H+(aq)+2Br−(aq)⇌Br2(aq)+SO2(g)+2H2O(l) In other words, what is Q when E=0 at this temperature?
What pH is needed to produce this value of Q if the concentration and pressure values...
What pH is needed to produce this value of Q if the
concentration and pressure values are
[Br2]=3.00×10−4M , [Br−]=12.60M , [SO42−]=9.25M , and,
PSO2=2.75×10−5atm ? Q = 2.3×10−26
SO42−(aq)+4H+(aq)+2Br−(aq)⇌Br2(aq)+SO2(g)+2H2O(l)
<Ch 20c (20.5-20.6) Tutorials (free energy, redox rxns, nonstandard cell potentials) + The Nernst Equation and pH Correct The reaction quotient is Q = 2.3 x 10-26 For any Q value less than this, E will be positive and therefore the reaction will favor products. Part B What pH is...
Sulfuric acid is a very strong acid that can act as an oxidizing agent at high...
Sulfuric acid is a very strong acid that can act as an oxidizing agent at high concentrations (very low pH, or even negative pH values). Under standard conditions, sulfuric acid has a low reduction potential, SO42- (aq) + 4H+(aq) + 2 = SO2 (9) + 2H2O(1), +0.20 V which means it cannot oxidize any of the halides F2, Cl2, Br2, or 12. If the H+ ion concentration is increased, however, the driving force for the sulfuric acid reduction is also...
Sulfuric acid is a very strong acid that can act as an oxidizing agent at high...
Sulfuric acid is a very strong acid that can act as an oxidizing agent at high concentrations (very low pH, or even negative pH values). Under standard conditions, sulfuric acid has a low reduction potential, SO42−(aq)+4H+(aq)+2e−⇌SO2(g)+2H2O(l), +0.20 V which means it cannot oxidize any of the halides F2, Cl2, Br2, or I2. If the H+ ion concentration is increased, however, the driving force for the sulfuric acid reduction is also increased according to Le Châtlier's principle. Sulfuric acid cannot oxidize the...
± The Nernst Equation and pH Sulfuric acid is a very strong acid that can act...
± The Nernst Equation and pH Sulfuric acid is a very strong acid that can act as an oxidizing agent at high concentrations (very low pH, or even negative pH values). Under standard conditions, sulfuric acid has a low reduction potential, SO42−(aq)+4H+(aq)+2e−⇌SO2(g)+2H2O(l), +0.20 V which means it cannot oxidize any of the halides F2, Cl2, Br2, or I2. If the H+ ion concentration is increased, however, the driving force for the sulfuric acid reduction is also increased according to Le Châtelier's...
Calculate Eºcell for each of the following balanced redox reactions. O2(g) + 2H2O(1) + 4Ag(s) +...
Calculate Eºcell for each of the following balanced redox reactions. O2(g) + 2H2O(1) + 4Ag(s) + 40H(aq) + 4Ag+(aq) Express your answer using two significant figures. V AEON O 2 ? cell= Submit Request Answer Part B Br2(1) + 21 (aq) + 2Br (aq) + 12(s) Express your answer using two significant figures. IVO AQ o 2 ? Eºcell= Submit Request Answer Part C PbO2(s) + 4H+(aq) + Sn(s) → Pb2+(aq) + 2H2O(1) + Sn2+(aq) Express your answer using two...
± The Nernst Equation and pH Suffuric acid is a very strong adid that can act...
± The Nernst Equation and pH Suffuric acid is a very strong adid that can act as an oxidizing agent at high concentrations (very low phl. or even negalive pll values), Under standard conditions, sulfturic acid has a low reductor potential, so (aq)4H (a)+2e SO2(g)+2H,0), +0.20 V which means it cannot axidize any of the halides F2. Cl2, Bra. or I,if the Ht ion concentration is increased, however, the driving force for the sulfuric acid reduction is also increased accordn...
What pH is needed to produce this value of Q if the
concentration and pressure values are
[Br2]=3.00×10−4M , [Br−]=12.60M , [SO42−]=9.25M , and,
PSO2=2.75×10−5atm ? Q = 2.3×10−26
SO42−(aq)+4H+(aq)+2Br−(aq)⇌Br2(aq)+SO2(g)+2H2O(l)
<Ch 20c (20.5-20.6) Tutorials (free energy, redox rxns, nonstandard cell potentials) + The Nernst Equation and pH Correct The reaction quotient is Q = 2.3 x 10-26 For any Q value less than this, E will be positive and therefore the reaction will favor products. Part B What pH is...
Sulfuric acid is a very strong acid that can act as an oxidizing agent at high concentrations (very low pH, or even negative pH values). Under standard conditions, sulfuric acid has a low reduction potential, SO42- (aq) + 4H+(aq) + 2 = SO2 (9) + 2H2O(1), +0.20 V which means it cannot oxidize any of the halides F2, Cl2, Br2, or 12. If the H+ ion concentration is increased, however, the driving force for the sulfuric acid reduction is also...
Calculate Eºcell for each of the following balanced redox reactions. O2(g) + 2H2O(1) + 4Ag(s) + 40H(aq) + 4Ag+(aq) Express your answer using two significant figures. V AEON O 2 ? cell= Submit Request Answer Part B Br2(1) + 21 (aq) + 2Br (aq) + 12(s) Express your answer using two significant figures. IVO AQ o 2 ? Eºcell= Submit Request Answer Part C PbO2(s) + 4H+(aq) + Sn(s) → Pb2+(aq) + 2H2O(1) + Sn2+(aq) Express your answer using two...
± The Nernst Equation and pH Suffuric acid is a very strong adid that can act as an oxidizing agent at high concentrations (very low phl. or even negalive pll values), Under standard conditions, sulfturic acid has a low reductor potential, so (aq)4H (a)+2e SO2(g)+2H,0), +0.20 V which means it cannot axidize any of the halides F2. Cl2, Bra. or I,if the Ht ion concentration is increased, however, the driving force for the sulfuric acid reduction is also increased accordn...
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