3. Calculation of the Equilibrium Constant from AG'Ⓡ Calculate the equilibrium constant Keq for each of the three reactions at pH 7.0 and 25 °C, using the AG'° values in Table 13-4.

Write the equilibrium constant expression for this reaction: 2CH,COO (aq)+C,H,O,(aq) → C,H1,0,(aq)+2OH¯(aq)

You are on a new planet and discover a substance, Z2O that undergoes autoionization just like water on Earth.  Z2O + Z2O  ⇌ Z3O+ + OZ– Through a series of experiments, you determine the equilibrium constant (Kx) for this autoionization reaction at various temperatures. The value of Keq at 25.1ºC is 6.6 x 10-13. What is the pZ of the pure substance at this temperature? (pZ = -log(Z3O+) Report your answer to the hundreths place.

If a solution initially contains 0.240 M HC2H3O2, what is the equilibrium concentration of H3O+ at 25 ∘C?

An equilibrium constant of special importance in much aqueous chemistry is that of the autoionization of water: 2 H₂O (/) H3O+ (aq) + OH¯ (aq) Kw The value of this equilibrium constant at three temperatures near standard temperature is Kw(293 K) = 0.67 × 10-¹4 M² Kw(298 K) = 1.00 × 10-¹4 M² Kw(303 K) = 1.45 × 10-¹4 M² (a) Assuming that the value of AH° and AS° are constant over this narrow temperature range, determine their values (in kJ/mol and J/mol-K, respectively for the ionization equilibrium at 298 K based on this information. (Hint: You should use both the relationship between AG° and K, and the relationship between the Gibbs energy, enthalpy, and entropy in this problem. Setting up your analysis as a least-squares linear fit provides the best result.) (b) Based on the results from part (a), what would you expect the autoionization equilibrium constant to be near the freezing point of water, at T = 275 K?

Complete the equilibrium reactions which are pertinent to an aqueous solution of Ag, CO,. Physical states are optional. dissociation of A£CO3: Ag,CO,(s) = dissociation of H,CO3: H,CO, (aq) + H,O(1) = dissociation of HCO,: HCO, (aq) + H,0(1) = dissociation of H,O: 2H,O(1) =

Determine the temperature of a reaction if K = 1.2 x 106 when AG° = +24.7 kJ/mol. %3D | K 1 4 5 6. C 7 8 9. +/- x 100 ng rax ol ach 2.