Saturday, 10 March 2012

Titrations

What is Titration? 

Titration is a controlled acid-base neutralization reaction. This experimental procedure is used in chemistry to determine the molarity of an acid or a base. A chemical reaction is set up between a known volume of a solution of unknown concentration and a solution with a known concentration. Essentially, we will use it to determine the concentration of this unknown solution.

What is Used in the Titration Process? 


 

  • The BURET contains the known solution, used to dispense known amounts of a liquid reagent in experiments for which such precision is necessary. 
  • The STOPCOCK is a valve used to control the flow of solution from the buret.
  • The PIPET GLASS TUBE is used to accurately measure the volume of an unknown solution.
  • The ERLENMEYER FLASK is the container for the unknown solution.
  • The INDICATOR is used to identify the end point of the titration process. In most cases a phenolphthalein indicator will be used.
  • The STOCK SOLUTION is the known solution.  
Below is a video which thoroughly explains the steps we will take during next class when we do our titrations lab. 

 

- Simon Sierra

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