Determine the quantity of sodium acetate (CH COONa) needed to create buffer solution at a particular pH. Do this by constructing an ICE table, writing the equilibrium constant expression, and using this information to determine the mass of starting material required. The value of Ka for CH COOH is 1.8 × 105. Complete Parts 1-3 before submitting your answer. < PREV 1 2 3 NEXT > Determine the quantity of sodium acetate (CH_COONa) needed to create buffer solution at a particular pH. Do this by constructing an ICE table, writing the equilibrium constant expression, and using this information to determine the mass of starting material required. The value of Ka for CH COOH is 1.8 × 105. Complete Parts 1-3 before submitting your answer. PREV 1 2 3 Based on your ICE table (Part 1) and the definition of Ka, set up the expression for Ka in order to determine the unknown. Each reaction participant must be represented by one tile. Do not combine terms. Based on your ICE table (Part 1) and the equilibrium expression, Ka (Part 2), determine the original mass of solid CH COONa added to create this buffer solution. Ka = = 1.8 × 10-5 RESET [0] [500.0] [0.200] [5.00] [1.0 × 10°º] [1.0 × 105] [1.8 × 10%] [x + 5.00] [x - 5.00] [x + 1.0 × 10] [x-1.0 × 10 [x + 1.0 × 10⁹] [x-1.0 × 10⁹] [x + 1.8 × 10°] [x-1.8 × 10%] MNACH COO = g 0 0.360 30 3.6 x 103 5.9 × 105 4.3 x 105 21 21 43 11 RESET 15 15 59 Determine the quantity of sodium acetate (CH_COONa) needed to create buffer solution at a particular pH. Do this by constructing an ICE table, writing the equilibrium constant expression, and using this information to determine the mass of starting material required. The value of Ka for CH COOH is 1.8 × 105. Complete Parts 1-3 before submitting your answer. 1 2 3 NEXT > 3 Sodium acetate (CH3COONa) is added to an existing 500.0 mL solution of 0.200 M CH COOH to form a buffer with a pH equal to 5.000. Let x represent the concentration of CH COO in the water after the addition of CH COONa. Fill in the ICE table with the appropriate value for each involved species to determine concentrations of all reactants and products. Initial (M) Change (M) Equilibrium (M) CH COOH(aq) + H₂O(I) H,O*(aq) + CH COO (aq) RESET 0 x 0.200 5.00 -5.00 1.0 × 10-⁹ -1.0 × 10-⁹ 1.0 × 10-5 -1.0 × 10-5 1.8 × 10-5 -1.8 × 10-5 x + 5.00 x- - 5.00 x + 1.0 × 10-9 x - 1.0 × 10-9 x + 1.0 × 10-5 x - 1.0 × 10-5 x + 1.8 × 10-5 x - 1.8 × 10-5