draw a curve similar to that shown in figure for a series of solutions of nh3. plot [oh−] on the vertical axis and the total concentration of nh3 (both ionized and nonionized nh3 molecules) on the hor draw a curve similar to that shown in figure for a series of solutions of nh3. plot [oh−] on the vertical axis and the total concentration of nh3 (both ionized and nonionized nh3 molecules) on the horizontal axis. let the total concentration of nh3 vary from 1 × 10−10 m to 1 × 10−2 m.