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Exam (elaborations)

AQA A Level Chemistry - Paper 3 Experiments
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7

May 2025

2024/2025

A+
Acid-Base Titration - correct answer1. Fill a burette 2. Use a pipette to transfer 25cm³ of the other solution into the conical flask 3. Add 2-3 drops of indicator 4. Start adding from the burette, swirling constantly, until the indicator changes colour. Record how much solution was added (rough titre) 5. Repeat to get concordant results and calculate a mean titre Anti-Bumping Granules - correct answerSmall, rough pieces of silica that are added to the mixture before reflux. They provide...
innostan
$10.99 More Info

Exam (elaborations)

AQA A Level Chemistry - Paper 3 Experiments
-

-

-

7

May 2025

2024/2025

A+
(some are partly done) qualitative tests for ions and organic functional groups, a b c f h, k, volatges. - correct answer Acid-Base Titration - correct answerrinse equipment (burette with acid, pipette with alkali, conical flask with distilled water) •pipette 25 cm3 of alkali into conical flask •touch surface of alkali with pipette ( to ensure correct amount is added) •adds acid solution from burette •make sure the jet space in the burette is filled with acid •add a few dr...
innostan
$12.49 More Info