Initial (M)Change (M)Equilibrium (M)Determine the pH of a buffer solution by constructing an ICE table, writing the equilibrium constantexpression, and using this information to determine the pH. The Ka for HC,H,O₂ is 6.3 x 105 CompleteParts 1-3 before submitting your answer.NEXTThe buffer was prepared by dissolving 21.5 g HC,H,O₂ and 37.7 g of NaC,H,O₂ in 200.0 mL of solution. Fill in the ICE table withthe appropriate value for each involved species to determine concentrations of all reactants and products.HC,H,Oz(aq)0.1780.880 x00.8881.31 + xQuestion 3 of 1021.50.178 + x37.7H₂O(l)0.888 + x0.17621.5 - x0.26137.7 + xHO*(aq)0.8800.176-xRESET1.310.261+x+CH,Or(aa)

Amount of HC7H5O2 = 21.5 gAmount of NaC7H5O2 = 37.7 gVolume of the solution = 200 mLKa of HC7H5O2 = First, let us determine the concentration of HC7H5O2 and NaC7H5O2 present. Concentration is the ratio of number of moles present per liter of the solution. So, first, let us determine the number of moles. The number of moles is the ratio of mass to molar mass. Determination of the number of moles of HC7H5O2 The mass of HC7H5O2 is given as 21.5 g and the molar mass is 122.12 g/mol. The number of moles of HC7H5O2 is 0.176 mol. Determination of the concentration of HC7H5O2 The number of moles of HC7H5O2 is 0.176 mol. The volume of the solution is 200 mL. The concentration of HC7H5O2 is 0.88 MDetermination of the number of moles of NaC7H5O2 The mass of NaC7H5O2 is given as 37.7 g and the molar mass is 144.11 g/mol. The number of moles of NaC7H5O2 is 0.262 mol. Determination of the concentration of NaC7H5O2 The number of moles of NaC7H5O2 is 0.262 mol. The volume of the solution is 200 mL.The concentration of NaC7H5O2 is 1.31 M. The concentration of C7H5O2- is also 1.31 M since NaC7H5O2 is a strong electrolyte. The dissociation of acid is shown below. Let us construct the ICE table for this dissociation. HC7H5O2C7H5O2-H3O+Initial (M)0.88 1.31 0 Change (M)-x+x+xEquilibrium (M)(0.88 + x) (1.31 + x) x The expression of the acid dissociation constant for this dissociation isKa is . Substitute concentration from the ICE table and solve it for x. The concentration of H3O+ is The pH is determined using the equation, The concentration of H3O+ is . The pH of the given buffer is 4.37