Chemistry Lab report:

  • Aim: To determine the concentration of acetic acid (CH3COOH)/Vinegar in the given sample.
  • Hypothesis-  The concentration will be determined by carrying out an experiment of titration of titrating the acetic acid with sodium hydroxide(NaOh)  and getting the concentration by using the formula M1V1=M2V2 where m is the molarity and v is the volume.
  • Apparatus: The materials needed for the experiment a pipette for taking exactly 25 ml of sodium hydroxide to put into the conical flask. A burette is needed for the acetic acid for an exact amount of volume to take. Distilled water is needed to rinse the burette before conducting the experiment, a conical flask is for the sodium hydroxide, a burette stand is to hold the burette, a tile, a dropper to drop the phenoptelin , a beaker to pour the  acid into the burette , acetic acid for the experiment to get the concentration and phenoptelin indicator for turning the NaOH to pink.
  • Variables: The independent variable for the experiment is the volume of the acid in the burette. And the drops of phenoptelin (indicator) used for the experiment.
  • Constant: The factors that were constant in the experiment are the volume of NaOH used for all the three readings and the concentration of the sodium hydroxide throughout the experiment. 
  • Procedure of the experiment:
Join now!
  1. Put the burette in the burette stand and rinse the burette two or three times with distilled water so that the burette is clean for the investigation.
  2. After it is rinsed, pour the acid into the burette and close the burette tightly, do it does not drip.
  3. Use the pipette to put exactly 25 cm3 of Sodium Hydroxide into the conical flask and put in 2 to or 3 drops of phenoptelin indicator into the flask to make the color pink for the experiment.
  4. Titrate the acid with the base by opening the tap of the burette ...

This is a preview of the whole essay