AQA A-Level Chemistry - Practicals. Exam questions and answers Graded A+ latest update (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
AQA A-Level Chemistry - Practicals. Exam questions and answers Graded A+ latest update (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.
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