ACID.docx - ACID-BASE TITRATION SIDDHI PANCHAL DATE OF...

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ACID-BASE TITRATION SIDDHI PANCHAL DATE OF SUBMISSION: MAY 10 SUB: CHM 266 LAB 1 SECTION 3 CSU ID: 2755471
INTRODUCTION In this experiment we used a pH sensor to monitor changes in pH as a sodium hydroxide solution is added to a hydrochloric acid solution, then we plotted a graph of pH versus volume of sodium hydroxide solution added. We were able to then use the graph to determine the equivalence point of titration, and the equivalence point was then calculated to determine where the most pH change happened. A titration is a process used to determine the volume of a solution needed to react with a given amount of another substance. During this lab, hydrochloric acid solution and 0.1 M sodium hydroxide solution were titrated to determine the unknown concentration of HCl and the molarity equation was used to determine the concentration of HCl. MATERIALS AND CHEMICALS LabQuest magnetic stirrer (if available) LabQuest App stirring bar or Microstirrer (if available) Vernier pH Sensor wash bottle HCl solution, unknown concentration distilled water 0.1 M NaOH solution ring stand pipet bulb or pump 1 utility clamp 250 mL beaker

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