2Sc(s) + Cr₂0,2(aq) + 14H*(aq) →2Sc³+ (aq) + 2Cr³+ (aq) + 7H₂O(1) Type your answers in all of the blanks and submit X, X' 22- Calculate Ecell and Ecell if the reaction occurs at 298K under the following conditions: pH = 1.85 [Cr₂0²] = 6.2x10-5M [Sc¹+] = 0.35M [Cr³+] = 0.75M Ecell Type your answer here Ecell Type your answer here V V

2Sc(s) + Cr₂0,2(aq) + 14H*(aq) →2Sc³+ (aq) + 2Cr³+ (aq) + 7H₂O(1) Type your answers in all of the blanks and submit X, X' 22- Calculate Ecell and Ecell if the reaction occurs at 298K under the following conditions: pH = 1.85 [Cr₂0²] = 6.2x10-5M [Sc¹+] = 0.35M [Cr³+] = 0.75M Ecell Type your answer here Ecell Type your answer here V V

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 84QAP: Calcium metal can be obtained by the direct electrolysis of molten CaCl2, at a voltage of 3.2 V. (a)...

See similar textbooks

Similar questions

Actually, the carbon in CO2(g) is thermodynamically unstable with respect to the carbon in calcium carbonate(limestone). Verify this by determining the standardGibbs free energy change for the reaction of lime,CaO(s), with CO2(g) to make CaCO3(s).
When carbon dioxide dissolves in water it reacts to produce carbonic acid, H2CO3(aq), which can ionize in two steps. H2CO3(aq)HCO3(aq)+H+(aq)Kc1=4.2107HCO3(aq)CO32(aq)+H+(aq)Kc2=4.81011 Calculate the equilibrium constant for the reaction H2CO3(aq)CO32(aq)+2H+(aq)
How is the pH scale defined? What range of pH values corresponds to acidic solutions? What range corresponds to basic solutions? Why is pH = 7.00 considered neutral? When the pH of a solution changes by one unit, by what factor does the hydrogen ion concentration change in the solution? How is pOH defined? How arc pH and pOH for a given solution related? Explain.
Calcium metal can be obtained by the direct electrolysis of molten CaCl2, at a voltage of 3.2 V. (a) How many joules of electrical energy are required to obtain 12.0 1b of calcium? (b) What is the cost of the electrical energy obtained in (a) if electrical energy is sold at the rate of nine cents per kilowatt hour?
Given the following data: PtCl42(aq)+2ePt(s)+4Cl(aq)Ered=0.73VPt2+(aq)+2ePt(s)Ered=1.20V Find Kffor PtCl42- at 25°C.
Calculate the standard cell potential of the cell corresponding to the oxidation of oxalic acid, H2C2O4, by permanganate ion. MnO4. 5H2C2O4(aq)+2MnO4(aq)+6H+(aq)10CO2(g)+2Mn2+(aq)+8H2O(l) See Appendix C for free energies of formation: Gf for H2C2O4(aq) is 698 kJ.
5.49. Consider the following equilibrium: What is the effect on the equilibrium of each of the following changes? (You may need to calculate some standard enthalpy or Gibbs energy changes to answer these.) (a) The pressure is increased by decreasing the volume. (b) The temperature is decreased. (c) The pressure is increased by the addition of nitrogen gas, .