Finding the concentration of a chemical. Outline of procedures: to prepare a standard solution of sodium carbonate and carry out a series of titrations to determine the concentration of hydrochloric acid.

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Mohamed hassan                student number: 20042512

Finding the concentration of a chemical

A solution of known concentration is called a standard solution.

Any non-chemical hazards and precautions to be taken

Any spills to be wiped immediately

Disposal of residues.

Done by Technician

Apparatus:        

  • balance
  • weighing bottle
  • spatula
  • beaker
  • glass rod
  • wash bottle
  • filter funnel
  • volumetric flask
  • pipette
  • teat pipette
  • conical flask
  • burette
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Method

To prepare a standard solution first I will calculate the mass of solute needed. Then I will carefully weigh out the mass of solute, dissolve it into water and transfer the solution into a volumetric flask. This is a flask of known volume. When the level of liquid in the flask reaches the graduation mark on the neck of the flask I will know the volume of the liquid in the flask. I will then add distilled water to top off the solution to the graduation mark.

A standard solution can only be made from ...

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