Practicals Chemistry AQA A-level Rated A+

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Practicals Chemistry AQA A-level Rated A+ Required Practical 1 - titration and making a standard solution Making a standard solution ✔✔1. weigh the required mass of solid using a sample bottle ... on a 2 dp balance. 2. transfer the solid into a beaker using distilled water to wash it out- preventing any solid remaining in the sample bottle. 3. reweigh the sample bottle and work out the difference. 4. Add 100cm3 of distilled water to the beaker to dissolve the solid (small volume of water) using a stirring rod to evenly distribute the solution. 5.transfer the dissolved solution into a 250cm3 graduated volumetric flask using a funnel, rinsing contents of the beaker and stirring rod with distilled water into the flask. 6. make up the solution to 250cm3 by adding more distilled water, using a dropping pipette for the last few drops. making sure the bottom of the meniscus is touching the line marking 250cm3. 7. invert the volumetric flask several times to ensure that the solution is uniform/evenly distributed. Required Practical 1 Making a solution and acid-base titration Acid-Base Titration (neutralisation)/redox titration ✔ [Show More]

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