Question

In: Chemistry

(a) Calculate the standard free-energy change (ΔG°) for the following oxidation-reduction reaction. Cu(s) + Br2(aq) →...

(a) Calculate the standard free-energy change (ΔG°) for the following oxidation-reduction reaction. Cu(s) + Br2(aq) → Cu2+(aq) + 2 Br−(aq)

(b) Calculate the equilibrium constant for this reaction at 298 K.

Solutions

Expert Solution


Related Solutions

A reaction: A (aq) + B (aq) <-----> C (aq) has a standard free energy change...
A reaction: A (aq) + B (aq) <-----> C (aq) has a standard free energy change of -3.05 kJ/mol at 25 C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively? A = ? M B= ? M C= ? M How would your answer above change if the reaction had a standard free energy change of +3.05 kJ/mol? A.)...
What is the standard Gibb’s Free Energy of the reaction graphite | Br-(aq) | Br2(l) |...
What is the standard Gibb’s Free Energy of the reaction graphite | Br-(aq) | Br2(l) | | I2(s) | I-(aq)? Is the reaction spontaneous under standard conditions? What is the initial cell potential of the voltaic cell represented by Zn | Zn+2 [0.100 M) | | Ni+2 (1.50 M) | Ni ? b. What is the cell potential when [Ni+]=0.500 M? c. What are the metal ion concentrations when the cell potential has fallen to 0.45 V?
4. Calculate the standard reduction potential and the standard free energy change for each of the...
4. Calculate the standard reduction potential and the standard free energy change for each of the following oxidation-reduction reactions: a. Ubiquinol (QH2) + 2 Cytochrome C(Fe +3) <--------> Ubiquinone (Q) + 2 Cytochrome C(Fe+2) + 2H+ b. Succinate + ½ O2 <--------> Fumarate + H2O c. Explain how odd chain fatty acids can serve as gluconeogenic precursors.
Calculate ΔG° for the following reaction as written Ni2+ (aq) + Sn (s) → Ni (s)...
Calculate ΔG° for the following reaction as written Ni2+ (aq) + Sn (s) → Ni (s) + Sn2+ (aq) given the following reduction half-reactions and standard reduction potentials. Sn2+ (aq) + 2 e- → Sn (s)      E° = -0.15V Ni2+ (aq) + 2 e- → Ni (s)      E° = -0.25V
Consider the reaction NH4Cl(aq)NH3(g) + HCl(aq) The standard free energy change for this reaction is 62.8...
Consider the reaction NH4Cl(aq)NH3(g) + HCl(aq) The standard free energy change for this reaction is 62.8 kJ. The free energy change when 1.72 moles of NH4Cl(aq) react at standard condition is____ kJ. What is the maximum amount of useful work that the reaction of 1.72 moles of NH4Cl(aq) is capable of producing in the surroundings under standard conditions?_______ If no work can be done, enter none. kJ
A reaction A(aq) + B(aq) --> C(aq) has a standard free-energy change of –3.23 kJ/mol at...
A reaction A(aq) + B(aq) --> C(aq) has a standard free-energy change of –3.23 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively?
Calculate the overall standard electromotive force (ΔE°') and free energy (ΔG°') for the reaction below. Show...
Calculate the overall standard electromotive force (ΔE°') and free energy (ΔG°') for the reaction below. Show all work. Pyruvate + NADH + H+ lactate + NAD+
Calculate the free-energy change of the following reaction at 352°C and standard pressure. Values in the...
Calculate the free-energy change of the following reaction at 352°C and standard pressure. Values in the table are at standard pressure and 25°C. C2H4 + 3O2 --> 2CO2 +2H2O ΔHºf,(kJ/mol) Sºf, J/mol•K ΔGºf, kJ/mol C2H4(g) 52.3 219.5 68.1 O2(g) 0 205.0 0 CO2(g) -393.5 213.6 -394.4 H2O(g) -241.8 188.7 -228.6
Reaction 1: Cu(s) + AgNO3 (aq) = CuNO3 (aq) + Ag (s) Reaction 2: Cu (s)...
Reaction 1: Cu(s) + AgNO3 (aq) = CuNO3 (aq) + Ag (s) Reaction 2: Cu (s) +AgNO3 (aq) = Cu(NO3)2 (aq) + Ag (s) Part 1: Write the balanced net ionic equations for both of the above reactions. Assume that excess silver nitrate is available when answering the remaining questions. Part 2: Calculate the theoretical grams of silver metal that could form from 2.568g of copper wire based upon reaction 1. (Be sure the reaction is properly balanced.) Part 3:...
a) For the reaction: A(aq) ---> B(aq) the change in the standard free enthalpy is 2.83...
a) For the reaction: A(aq) ---> B(aq) the change in the standard free enthalpy is 2.83 kJ at 25 oC and 4.61 kJ at 45 oC. Calculate the value of this reaction's equilibrium constant at 75 oC. b) A container encloses 31.1 g of CO2(g). The partial pressure of CO2 is 2.66 atm and the volume of the container is 25.9 L. What is the average, or root mean square, speed (in m/s) of the CO2 molecules in this container?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT