AQA- A LEVELCHEMISTRY- CPACS REVISION EXAM QUESTIONS WITH CORRECT ANSWERS PROVIDED 2025/2026 EDITION
AQA- A LEVELCHEMISTRY- CPACS REVISION EXAM QUESTIONS WITH CORRECT ANSWERS PROVIDED 2025/2026 EDITION (1) Outline how to prepare a Standard Solution in a Volumetric Flask (for an acid-base titration). - 1. All apparatus rinsed with distilled water. 2. Solute weighed out accurately, on a weighing boat, using a balance accurate to 2 dp. 3. Solid placed in beaker and dissolved in about 100cm3 of water. 4. Weighing boat rinsed with a small quantity of water and washings added to beaker - or, weighing boat should be reweighed and the difference calculated. 5. Solution transferred to a 250cm3 volumetric flask. 6. Beaker rinsed with distilled water and washings added to volumetric flask. 7. Distilled water added to volumetric flask until made up to graduation mark - bottom of meniscus should rest on the mark.
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aqa a levelchemistry cpacs revision exam questio
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