In a titration, an acid of known concentration is placed in a burette and reacted with a base that has been pipetted into a conical flask - HSC - SSCE Chemistry - Question 8 - 2002 - Paper 1
Question 8
In a titration, an acid of known concentration is placed in a burette and reacted with a base that has been pipetted into a conical flask.
What should each piece of... show full transcript
Worked Solution & Example Answer:In a titration, an acid of known concentration is placed in a burette and reacted with a base that has been pipetted into a conical flask - HSC - SSCE Chemistry - Question 8 - 2002 - Paper 1
Step 1
Burette
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Answer
The burette should be rinsed with the acid that it will contain. This ensures that the concentration of the acid in the burette is not diluted by any residual water or other substances.
Step 2
Pipette
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Answer
The pipette should be rinsed with the base that will be pipetted into the conical flask. This prevents contamination and ensures accurate measurement of the base.
Step 3
Conical flask
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Answer
The conical flask should be rinsed with water. This is acceptable as it is typically a container for mixing the reactants, and any residual water will not significantly affect the titration.
