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 Standardization of sulphuric acid.

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  • Essay length: 1387 words
  • Submitted: 05/11/2003
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GCSE Aqueous Chemistry

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Title: Standardization of sulphuric acid

Theory:

To define the unknown concentration of the sulphuric acid, sodium carbonate solution is used as a standard basic solution to undergo titration. A titration can find out the volume of the sodium carbonate solution which is used to neutralize

a specific volume of sulphuric acid in the conical flask or vice versa. The result will be the same as we are objective to define the number of moles of reactants. The number of moles of sulphuric acid can be calculated base on the mole ratio 1:1 for sodium carbonate solution to sulphuric acid in the neutralization. We put sodium carbonate solution in burette and acid in conical flask because less acid should be used for the sake of safety.

This time, sodium carbonate is used as a primary standard. A primary standard is a substance which can be used for the direct preparation of a standard solution. This is due to several advantages that sodium carbonate persists:

First, it is obtained in high degree of purity. Then, it is stable and unaffected by the atmosphere which implies that the purity will not

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