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(a)
Interpretation:
The value of
Concept introduction:
The relation between Gibbs free energy and electrode potential is as follows:
Here,
(b)
Interpretation:
The fraction of
Concept introduction:
The concentration is related to moles of solute and volume of solution as follows:
For a general equilibrium reaction as follows:
The equilibrium constant can be represented as follows:
Here,
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Chapter 22 Solutions
EBK GENERAL CHEMISTRY
- The thermite reaction is 2Al(s) + Fe2O3(s) Al2O3(s) + 2Fe(s) (a) Calculate G for this reaction. (b) Calculate Keq for this reaction. Assume T = 298 K. You may have to do some mathematical manipulations to get your final numerical answer.arrow_forwardHow 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.arrow_forwardCalculate G and K at 25C for the reactions in Exercises 38 and 42.arrow_forward
- Calculate the value of E for each of the following reactions. Decide whether each is product-favored at equilibrium in the direction written. [Reaction (d) is carried out in basic solution.] (a) Br2() + Mg(s) Mg2+(aq) + 2 Br(aq) (b) Zn2+(aq) + Mg(s) Zn(s) + Mg2+(aq) (c) Sn2+(aq) + 2 Ag+(aq) Sn4+(aq) + 2Ag(s) (d) 2 Zn(s) + O2(g) + 2 H2O() + 4 OH(aq) 2[Zn(OH)4]2(aq)arrow_forwardWet limestone is used to scrub SO2 gas from the exhaust gases of power plants. One possible reaction gives hydrated calcium sulfite: CaCO3(s) + SO2(g) + H2O() CaSO3 H2O(s) + CO2(g) Another reaction gives hydrated calcium sulfate: CaCO3(s) + SO2(g) + H2O() + O2(g) CaSO4 H2O(s) + CO2(g) (a) Which reaction is more product-favored at equilibrium? Use the data in the table below and any other information needed in Appendix L to calculate rG for each reaction at 25 C. (b) Calculate rG for the reaction CaSO3 H2O(s) + O2(g) CaSO4 H2O(s) Is this reaction product- or reactant-favored at equilibrium?arrow_forwardCalculate equilibrium constants for the following reactions at 208 K. Indicate whether the equilibrium as written is reactant- or product-favored at equilibrium. (a) Co(s) + Ni2+(aq) Co2+(aq) + Ni(s) (b) Fe3+(aq) + Cr2+(aq) Cr3+(aq) + Fe2+(aq)arrow_forward
- Using the following data, calculate the value of Ksp for Ba(NO3)2, one of the least soluble of the common nitrate salts. Species Gfo Ba2+(aq) 561 KJ/mol NO3(aq) 109 KJ/mol Ba(NO3)2(s) 797KJ/molarrow_forwardThe equilibrium constant for the reaction N2(g) + O2(g) 2 NO(g) is 1.7 103 at 2300 K. (a) What is K for the reaction when written as follows? N2(g) + O2(g) NO(g) (b) What is K for the following reaction? 2 NO(g) N2(g) + O2(g)arrow_forwardCalculate G at 25C for the reaction BaSO4(s)Ba2+(aq)+SO42(aq) See Appendix C for values of Gf.What is the value of the solubility product constant, Ksp, for this reaction at 25C?arrow_forward
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