Part A and B please
A) Use the standard half-cell potentials listed below to calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25°C. (The equation is balanced.)
2F2(g) + Mn(s) â 4 F-(aq) + Mn2+(aq)
F2(g) + e- â 2 F-(aq) E° = +2.87 V Mn2+(aq) + 2 e- â Mn(s) E° = -1.18 V
a) +2.87 V b) 4.050 V c) -4.050 V d) -4.060 V e)1.69 V
B) Balance the following redox reaction if it occurs in H2SO4. What are the coefficients in front of H2O and Cr2(SO4)3 in the balanced reaction?
C3H8O2(aq) + K2Cr2O7(aq) â C3H4O4(aq) + Cr2(SO4)3(aq)
a) H2O = 22, Cr2(SO4)3 = 4 b) H2O = 5, Cr2(SO4)3 = 2 c) H2O = 8, Cr2(SO4)3 = 2 d) H2O = 11, Cr2(SO4)3 = 4 e) H2O = 1, Cr2(SO4)3 = 5
Part A and B please
A) Use the standard half-cell potentials listed below to calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25°C. (The equation is balanced.)
2F2(g) + Mn(s) â 4 F-(aq) + Mn2+(aq)
| F2(g) + e- â 2 F-(aq) | E° = +2.87 V |
| Mn2+(aq) + 2 e- â Mn(s) | E° = -1.18 V |
| a) +2.87 V |
| b) 4.050 V |
| c) -4.050 V |
| d) -4.060 V |
| e)1.69 V |
B) Balance the following redox reaction if it occurs in H2SO4. What are the coefficients in front of H2O and Cr2(SO4)3 in the balanced reaction?
C3H8O2(aq) + K2Cr2O7(aq) â C3H4O4(aq) + Cr2(SO4)3(aq)
| a) H2O = 22, Cr2(SO4)3 = 4 |
| b) H2O = 5, Cr2(SO4)3 = 2 |
| c) H2O = 8, Cr2(SO4)3 = 2 |
| d) H2O = 11, Cr2(SO4)3 = 4 |
| e) H2O = 1, Cr2(SO4)3 = 5 |
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Pls Pls only answer if you are going to answer all of them and not just one or two thanks i got alot in my hands cuz of finals, and don't have time to do them, Appreciate it, trust that they'll be right , I posted this once but they only did one instead of all six so yeah thanks
1) The electrochemical cell described by the balanced chemical equation has a standard emf of 0.35 V. Calculate the value (J) for the Wmax that the cell can do under standard conditions. Round your answer to 3 significant figures.
2MnO42-(aq) + 2Hg2+(aq) â 2MnO4-(aq) + Hg22+(aq)
| St. Red. Pot. (V) | ||||
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| Faraday's Constant | ||||
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2) The voltaic cell described by the balanced chemical reaction has a standard emf of 4.05 V. Calculate the equilibrium constant (Kc) for the reaction at 25 oC. Round your answer to 3 significant figures. F2(g) + Mn(s) â 2F-(aq) + Mn2+(aq)
| St. Red. Pot. (V) | ||||
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| Constants | ||||
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| Faraday's Constant | ||||
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3) The voltaic cell described by the cell notation has an Eo of 0.68 V. Calculate the Wmax (kJ) the cell has done if 6.4700 mol of MnO4-(aq) (Molar Mass - 118.94 g/mol) reacts. Round your answer to 3 significant figures.
Pt(s) l VO2+(aq), VO2+(aq), H+(aq) ll H+(aq), MnO4-(aq) l MnO2(s) l Pt(s)
| St. Red. Pot. (V) | ||||
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| Faraday's Constant | ||||
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4) The galvanic cell described by the cell notation has an Eo of 1.23 V. Calculate the value (kJ) for the ÎGË of the cell. Round your answer to 3 significant figures.
Pt(s), H2(g) l H2O(l), OH-(aq) ll O2(g) l OH-(aq) l Pt(s)
| St. Red. Pot. (V) | ||||
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| Faraday's Constant | ||||
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5) The electrochemical cell described by the balanced chemical equation has a standard cell potential of -0.37 V. Calculate the value (kJ) for the standard free energy change of the cell. Round your answer to 3 significant figures.
Sn4+(aq) + 2Cu(s) â Sn2+(aq) + 2Cu+(aq)
| St. Red. Pot. (V) | ||||
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| Faraday's Constant | ||||
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6)The electrochemical cell described by the cell notation has an Eocell of 4.05 V. Calculate the maximum electrical work (kJ) the cell has done if 375.44 g of F2(g) (Molar Mass - 38.00 g/mol) reacts. Round your answer to 3 significant figures.
Mn(s) l Mn2+(aq) ll F2(g) l F-(aq) l Pt(s)
| St. Red. Pot. (V) | ||||
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| Faraday's Constant | ||||
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PLS only answer if you know what you're doing and if you are going to answer all of them, i got alot to do cuz of finals so i'd appreciate it if you answer them all correctly, thank you
| 1) Calculate the standard emf (electromotive force) for a voltaic cell whose cell reaction is represented by the balanced equation. 2) Calculate the standard cell potential for a galvanic cell whose cell reaction is represented by the balanced equation. St. Red. Pot. (V)
3) For the voltaic cell shown, calculate the standard cell potential.
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