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 solution that it will contain. This ensures that any residual water is removed and does not dilute the acid.
Step 2
Pipette
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Answer
The pipette should be rinsed with the base that it will be transferring. This prevents contamination and ensures that the correct concentration of the base is delivered.
Step 3
Conical flask
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Answer
The conical flask should be rinsed with water. This is suitable as it is just being used to contain the base, and water will not affect the reaction.
