Consider the following reaction: 3MnO42- + 4H+ ➞ 2MnO4- + MnO2 + 2H2O In 0.20 min,...
Consider the following reaction:
3MnO42- + 4H+ ➞ 2MnO4- + MnO2 + 2H2O
In 0.20 min, [MnO42-] decreases from 1.25 M to 0.53 M.
a) What is the average rate of reaction of MnO42- and H+ in M/s?
b) What is the average rate of formation of MnO4- and MnO2?
c) What is the unique rate of reaction?
Homework Answers
Add Answer to:
Consider the following reaction:
3MnO42- + 4H+ ➞
2MnO4- + MnO2 +
2H2O
In 0.20 min,...
a)Co2+ + Mn2++ 2H2O->MnO2 + Co+ 4H+ In the above reaction, the oxidation state of manganese...
a)Co2+ + Mn2++ 2H2O->MnO2 + Co+ 4H+ In the above reaction, the oxidation state of manganese changes from to . How many electrons are transferred in the reaction? B)BrO3- + 3Pb+ 6H+->3Pb2+ + Br-+ 3H2O In the above reaction, the oxidation state of bromine changes from to . How many electrons are transferred in the reaction? C)2Ag+ + Cl2+ 2H2O->2Ag + 2HClO+ 2H+ In the above reaction, the oxidation state of chlorine changes from to How many electrons are transferred...
Find Ecell for an electrochemical cell based on the following reaction with [MnO4−]=1.50M, [H+]=1.50M, and [Ag+]=0.0140M....
Find Ecell for an electrochemical cell based on the following reaction with [MnO4−]=1.50M, [H+]=1.50M, and [Ag+]=0.0140M. E∘cell for the reaction is +0.88V. MnO4−(aq)+4H+(aq)+3Ag(s)→MnO2(s)+2H2O(l)+3Ag+(aq) Find for an electrochemical cell based on the following reaction with , , and . for the reaction is . 0.75 V 1.01 V 0.84 V 0.92 V
6. Consider the following balanced equation MnO2 + 4H+ + 2Cl- → Mn2+ + 2H20 +Cl2...
6. Consider the following balanced equation MnO2 + 4H+ + 2Cl- → Mn2+ + 2H20 +Cl2 4.786g MnO2 are reacted and the chlorine gas is collected in a 458 mL vessel at 19°C. What is the pressure of the gas?
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Consider the following redox reaction at 25 oC: MnO2 (s)àMn2+ (aq) + MnO4- (aq) (a) Balance the equation in acid (b) Calculate Eocell (c) CalculateDGorxn (d) Calculate K
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When the following reaction is balanced under basic conditions, what is the ratio of the coefficients of Mn(OH)2(s) to MnO4--(aq)? Mn(OH)2(s) + MnO4 (aq) + MnO42-(aq) (A) 3:1 (B) 1:3 (C) 1:4 (D) 1:5 What is the standard reduction potential for the reduction of permanganate ion to managanese dioxide in acidic solution? Half-Reaction E. V MnO4 (aq) + 8 H(aq) + 5 € → Mn²+ (aq) + +1.51 4 H2O(1) MnO2(s) + 4 H (aq) + 2 e → Mn2+(aq)...
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...
A galvanic cell at a temperature of 25.0°C is powered by the following redox reaction: 2MnO4-(aq)...
A galvanic cell at a temperature of 25.0°C is powered by the following redox reaction: 2MnO4-(aq) + 16H+(aq) + 5Pb(s) -> 2Mn2+(aq) + 8H2O(l) + 5Pb2+(aq) Suppose the cell is prepared with 2.08M MnO4- and 1.77M H+ in one half-cell and 1.82M Mn2+ and 1.13M Pb2+ in the other. Calculate the cell voltage under these conditions. Do not round intermediate calculations. Round your answer to 3 significant digits.
Consider the following two reactions involving oxalic acid. 2MnO4− + 5H2C2O4 + 6H+ → 2Mn2+ +...
Consider the following two reactions involving oxalic acid. 2MnO4− + 5H2C2O4 + 6H+ → 2Mn2+ + 10CO2 + 8H2O H2C2O4 + 2OH− → C2O42− + 2H2O What volume of 0.0100 M KMnO4 solution will titrate a solution prepared from 46.0 mg of H2C2O4? What volume of 0.0100 M NaOH solution will titrate a solution prepared from 46.0 mg of H2C2O4?
The unbalanced reaction in BASIC solution: MnO4 ++MnO2 + 12 What are the stiochiometric coefficients for:...
The unbalanced reaction in BASIC solution: MnO4 ++MnO2 + 12 What are the stiochiometric coefficients for: = MnO4 = What is the kz(in (1/s))if the following data is given? Answer to 3 decimal places. kq=3.46x102 (1/5) T1=298 K T2=350K Ea= 50.2 kJ/mol R=8.314 J/(molxK) A second-order reaction has a rate constant of 7.0x10' (1/Mxs) at 23°C. The initial concentration is 0.086M. What is the concentration after 20 minutes. Answer to 1 decimal. A at time= x10 Question 3 1 pts...
Find Ecell for an electrochemical cell based on the following reaction with [MnO−4]= 1.20 M ,...
Find Ecell for an electrochemical cell based on the following reaction with [MnO−4]= 1.20 M , [H+]= 1.40 M , and [Ag+]= 0.0130 M . E∘cell for the reaction is +0.880V. MnO−4(aq)+4H+(aq)+3Ag(s)→MnO2(s)+2H2O(l)+3Ag+(aq) Express your answer to three significant figures and include the appropriate units.
When the following reaction is balanced under basic conditions, what is the ratio of the coefficients of Mn(OH)2(s) to MnO4--(aq)? Mn(OH)2(s) + MnO4 (aq) + MnO42-(aq) (A) 3:1 (B) 1:3 (C) 1:4 (D) 1:5 What is the standard reduction potential for the reduction of permanganate ion to managanese dioxide in acidic solution? Half-Reaction E. V MnO4 (aq) + 8 H(aq) + 5 € → Mn²+ (aq) + +1.51 4 H2O(1) MnO2(s) + 4 H (aq) + 2 e → Mn2+(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...
The unbalanced reaction in BASIC solution: MnO4 ++MnO2 + 12 What are the stiochiometric coefficients for: = MnO4 = What is the kz(in (1/s))if the following data is given? Answer to 3 decimal places. kq=3.46x102 (1/5) T1=298 K T2=350K Ea= 50.2 kJ/mol R=8.314 J/(molxK) A second-order reaction has a rate constant of 7.0x10' (1/Mxs) at 23°C. The initial concentration is 0.086M. What is the concentration after 20 minutes. Answer to 1 decimal. A at time= x10 Question 3 1 pts...
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