Step 2. Calculate contain acetic acid and its conjugate base solution's pH value In the solution acetic acid's concentration and acetate ions concentration HAc=0. 10 mol L- [Ac]=0.10 mol L-l Acetic acid equilibrium-constant Ka=1.70×105 In this solution has a acid-base equilibrium HAC Starting 0.10 0.10Step 2. Calculate contain acetic acid and its conjugate base solution’s pH value In the solution acetic acid’s concentration and acetate ion’s concentration [HAc] = 0.10 mol.L-1 [Ac- ] = 0.10 mol.L-1 Acetic acid equilibrium-constant Ka = 1.7010-5 In this solution has a acid-base equilibrium HAc H+ + Ac￾Starting 0.10 0.10