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Solutions & Dilutions

Preparing Standard Solutions

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Practise filling a volumetric flask with a specific volume of solution, ensuring the meniscus is level with the graduation mark.

Learning Outcomes

  • Understand how to properly fill a volumetric flask
  • Understand the importance of the meniscus to fill to the right level
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Using Instruments and Equipment

  • How to transfer solution to a volumetric flask 
  • How to line up the bottom of the meniscus with the calibration mark 
  • How to mix the solution thoroughly after it has been topped up to the calibration mark 
  • Why it is important to rinse the beaker after transferring to the volumetric flask 
  • Why you should recheck the level against the calibration mark after mixing 

Working in a Safe Manner

  • Why a funnel should be used to transfer the solution and prevent spillages 
  • Why the flask must be stoppered before inverting to mix

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Solutions & Dilutions

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