So the concentration of HCl you computed was of the true value, 0.120 M. A graph of Titration of H C l with N a O H has volume N a O H titrated on the horizontal axis and p H of mixture on the vertical axis, ranging from 0 to 14 in units of 2. 5 orange dots lie along the beginning of a line that runs along the horizontal axis, and curves sharply up as it reaches the last dot through a point labeled equivalence point p H 7, and continues to rise sharply before starting to level off at about 12 on the p H scale, where it runs through 5 more red dots. A dotted line runs across the graph at 8.2 on the p H scale. slight overestimate