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Chem 1120, Spring 2020 Section 001 Hi, Melani Sign Home apter 19 Homework ell...
Review Constants Periodic Part B Calculate the standard cel potential at 25°C for the reaction X(s) + 2Y+ (aq)--X2+...
Review Constants Periodic Part B Calculate the standard cel potential at 25°C for the reaction X(s) + 2Y+ (aq)--X2+ (aq) + 2Y(s) where AH = -873 kJ and AS = -169 JK Express your answer to three significant figures and include the appropriate units. View Available Hint(s) E. 2.2 V Submit Previous Answers X Incorrect; Try Again; 2 attempts remaining Provide Feedback
Free-energy change, AGº, is related to cell potential, Eº, by the equation AG° = -nFE° where...
Free-energy change, AGº, is related to cell potential, Eº, by the equation AG° = -nFE° where n is the number of moles of electrons transferred and F = 96,500 C/(mol e ) is the Faraday constant. When Eº is measured in volts, AGⓇ must be in joules since 1 J =1C.V. Part A Calculate the standard free-energy change at 25°C for the following reaction: Mg(s) + Fe2+ (aq)Mg2+ (aq) + Fe(s) Express your answer to three significant figures and include...
Part c Part C If AH = -60.0 kJ and AS = -0.500 kJ/K, the reaction...
Part c
Part C If AH = -60.0 kJ and AS = -0.500 kJ/K, the reaction is spontaneous below a certain temperature. Calculate that temperature. Express your answer numerically in kelvins. ► View Available Hint(s) VO ADD A A O O ? 233.3 Submit Previous Answers X Incorrect; Try Again; 5 attempts remaining
Calculate the standard cell potential (Eo) for the reaction X(s)Y (aq)X (aq)Y(s) if K 4.12x10-3 Express...
Calculate the standard cell potential (Eo) for the reaction X(s)Y (aq)X (aq)Y(s) if K 4.12x10-3 Express your answer to three significant figures and include the appropriate units. View Available Hint(s) HA ? Value Units Eo Previous Answers Submit If the equilibrium constant for a two-electron redox reaction at 298 K is 1.4x10-4, calculate the corresponding AG° and Ec under standard Express your answer using two significant figures. cel ΑΣφ conditions. ? AG0 = kJ Request Answer Submit Part B Express...
do part b Calculate the standard enthalpy change for the reaction 2A+B=2C+2D Use the following data...
do part b
Calculate the standard enthalpy change for the reaction 2A+B=2C+2D Use the following data Substance ΔΗ: (kJ/mol) А -227 B -419 с 195 D -525 Express your answer to three significant figures and include the appropriate units. View Available Hint(s) AH x = 213 kJ Previous Answers ✓ Correct Part B For the reaction given in Part A how much heat is absorbed when 3.20 mol of A reacts? Express your answer to three significant figures and include...
Part B Click on the process is revend AH Changes sign when a button within the...
Part B Click on the process is revend AH Changes sign when a button within the activity and analyze the relationship between the two reactions that are displayed. The reaction that was on the screen when you started and its derivative demonstrate that the reaction enthalpy, AH, changes sign when a process is reversed. Consider the reaction H2O(1)+H2O(g), AH = 44.0kJ What will AH be for the reaction if it is reversed? Express your answer with appropriate units. View Available...
Part B Calculate the standard cell potential (E") for the reaction X(s)Y(a)-X (a)+ Y(s) f K-3.70x...
Part B Calculate the standard cell potential (E") for the reaction X(s)Y(a)-X (a)+ Y(s) f K-3.70x 104 Express your answer to three significant figures and include the appropriate units View Available Hint(s) Value V SubmitPrev Previous Answers X Incorrect, Try Again; 4 attempts remaining
The equilibrium constant, K. for a redox reaction is related to the standard potential, E, by...
The equilibrium constant, K. for a redox reaction is related to the standard potential, E, by the equation Fe(s) + Ni+ (aq) +Fe?+ (aq) + NI(s) FE In K = Express your answer numerically. View Available Hints) where n is the number of moles of electrons transferred, F (the Faraday constant) is equal to 96,500 C/(mole). R (the gas constant) is equal to 8.314 J/(mol-K). and T is the Kelvin temperature. ΟΙ ΑΣΦ h ? KK- Submit Previous Answers *...
Part B Complete previous part(s) Part C Firefly luciferase is the enzyme that allows fireflies to...
Part B Complete previous part(s) Part C Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. Because this light generation is an ATP-requiring reaction, firefly luciferase can be used to test for the presence of ATP. In this way, luciferase can test for the presence of life. The coupled reactions are 1. luciferin + 0,= oxyluciferin + light 2. ATP AMP+PP AG = -31.6 kJ/mol If the overall AG of the coupled reaction is -4.50 kJ/mol, what...
GenChem 2 Spring 2020 Part The pH of an unknown acid solution is 135. What is...
GenChem 2 Spring 2020 Part The pH of an unknown acid solution is 135. What is the [H:0*)? View Available Hint(s) 0.13 M 2.2 x 10-"M 0.045 M 135 M Submit Previous Answers X Incorrect; Try Again; 4 attempts remaining The selected value is the loc(pH) The pH is defined as the negative logarithm of the HO" You may need to review Logarithmic Expressions involving Provide Feedback < Return to Assignment ptual 508 ) Review Constants Periodic Table Part B...
Review Constants Periodic Part B Calculate the standard cel potential at 25°C for the reaction X(s) + 2Y+ (aq)--X2+ (aq) + 2Y(s) where AH = -873 kJ and AS = -169 JK Express your answer to three significant figures and include the appropriate units. View Available Hint(s) E. 2.2 V Submit Previous Answers X Incorrect; Try Again; 2 attempts remaining Provide Feedback
Free-energy change, AGº, is related to cell potential, Eº, by the equation AG° = -nFE° where n is the number of moles of electrons transferred and F = 96,500 C/(mol e ) is the Faraday constant. When Eº is measured in volts, AGⓇ must be in joules since 1 J =1C.V. Part A Calculate the standard free-energy change at 25°C for the following reaction: Mg(s) + Fe2+ (aq)Mg2+ (aq) + Fe(s) Express your answer to three significant figures and include...
Part c
Part C If AH = -60.0 kJ and AS = -0.500 kJ/K, the reaction is spontaneous below a certain temperature. Calculate that temperature. Express your answer numerically in kelvins. ► View Available Hint(s) VO ADD A A O O ? 233.3 Submit Previous Answers X Incorrect; Try Again; 5 attempts remaining
Calculate the standard cell potential (Eo) for the reaction X(s)Y (aq)X (aq)Y(s) if K 4.12x10-3 Express your answer to three significant figures and include the appropriate units. View Available Hint(s) HA ? Value Units Eo Previous Answers Submit If the equilibrium constant for a two-electron redox reaction at 298 K is 1.4x10-4, calculate the corresponding AG° and Ec under standard Express your answer using two significant figures. cel ΑΣφ conditions. ? AG0 = kJ Request Answer Submit Part B Express...
do part b
Calculate the standard enthalpy change for the reaction 2A+B=2C+2D Use the following data Substance ΔΗ: (kJ/mol) А -227 B -419 с 195 D -525 Express your answer to three significant figures and include the appropriate units. View Available Hint(s) AH x = 213 kJ Previous Answers ✓ Correct Part B For the reaction given in Part A how much heat is absorbed when 3.20 mol of A reacts? Express your answer to three significant figures and include...
Part B Click on the process is revend AH Changes sign when a button within the activity and analyze the relationship between the two reactions that are displayed. The reaction that was on the screen when you started and its derivative demonstrate that the reaction enthalpy, AH, changes sign when a process is reversed. Consider the reaction H2O(1)+H2O(g), AH = 44.0kJ What will AH be for the reaction if it is reversed? Express your answer with appropriate units. View Available...
Part B Calculate the standard cell potential (E") for the reaction X(s)Y(a)-X (a)+ Y(s) f K-3.70x 104 Express your answer to three significant figures and include the appropriate units View Available Hint(s) Value V SubmitPrev Previous Answers X Incorrect, Try Again; 4 attempts remaining
The equilibrium constant, K. for a redox reaction is related to the standard potential, E, by the equation Fe(s) + Ni+ (aq) +Fe?+ (aq) + NI(s) FE In K = Express your answer numerically. View Available Hints) where n is the number of moles of electrons transferred, F (the Faraday constant) is equal to 96,500 C/(mole). R (the gas constant) is equal to 8.314 J/(mol-K). and T is the Kelvin temperature. ΟΙ ΑΣΦ h ? KK- Submit Previous Answers *...
Part B Complete previous part(s) Part C Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. Because this light generation is an ATP-requiring reaction, firefly luciferase can be used to test for the presence of ATP. In this way, luciferase can test for the presence of life. The coupled reactions are 1. luciferin + 0,= oxyluciferin + light 2. ATP AMP+PP AG = -31.6 kJ/mol If the overall AG of the coupled reaction is -4.50 kJ/mol, what...
GenChem 2 Spring 2020 Part The pH of an unknown acid solution is 135. What is the [H:0*)? View Available Hint(s) 0.13 M 2.2 x 10-"M 0.045 M 135 M Submit Previous Answers X Incorrect; Try Again; 4 attempts remaining The selected value is the loc(pH) The pH is defined as the negative logarithm of the HO" You may need to review Logarithmic Expressions involving Provide Feedback < Return to Assignment ptual 508 ) Review Constants Periodic Table Part B...
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