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The volume of dilute sulfuric acid required to neutralise 25.0 cm³ of ammonia solution can be found by titration - Edexcel - GCSE Chemistry - Question 7 - 2022 - Paper 1
Question 7
The volume of dilute sulfuric acid required to neutralise 25.0 cm³ of ammonia solution can be found by titration. In the titration, a few drops of methyl orange ind... show full transcript
Worked Solution & Example Answer:The volume of dilute sulfuric acid required to neutralise 25.0 cm³ of ammonia solution can be found by titration - Edexcel - GCSE Chemistry - Question 7 - 2022 - Paper 1
Step 1
Step 2
Step 3
Explain two other practical steps that should be used in the titration to ensure that an accurate titre volume is obtained.
Answer
- Use a white tile under the flask to see the colour change more clearly when the indicator changes color.
- Ensure to rinse the burette with the acid solution before filling it to avoid contamination.
Step 4
Devise a plan to produce a sample of dry ammonium sulfate from the contents of the conical flask.
Answer
- Allow the solution to cool and evaporate it in an evaporating basin until dry.
- Filter the remaining solution to collect any dry ammonium sulfate crystals.
- Leave the crystals to air dry, or use gentle warming if necessary.