In this process an aqueous solution is the combination of hydronium ions with hydroxide ions to form water. ... A specific volume of a solution reacts with a standard solution of another substance where the concentration is known. ... An indicator solution (phenolphthalein in this experiment) is used to show when the amount of acid equals the amount of base in the solution. ... Since the solutions were used by the entire class, some solutions may have been mislabeled causing errors in the titration process. ... An important precaution in this experiment was to make sure that the solutions ...

• Word Count: 911
• Approx Pages: 4
• Grade Level: High School

However, if a base such as sodium hydroxide is added to an aqueous solution of HA at equilibrium, the following neutralization reaction will occur: HA + OH-  HOH + A- Addition of more OH- ions exponentially increased the pH level since none of it is being used up by any reaction with H+. ... A pH meter was used to measure pH levels of the solution. ... The data obtained in this lab was the pH of the solution and the volume of NaOH. ... The solution finally peaks at 40.0 mL of NaOH at a pH of about 12.0. ... At this exact point is when the pH of the solutions equals the pKa. ...

• Word Count: 1211
• Approx Pages: 5
• Grade Level: High School