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Why a filter paper cannot be utilized for the removal of potassium permaganate precipitate?
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- For titration, what is the purpose of a dropwise rate?Why is it not necessary to know the exact volume of deionized water added when preparing the samples for titration?During the mixing step, briefly discuss why gentle mixing of the solution is necessary after the addition of ferric chloride? How does this impact the next step of sedimentation?
- Contamination of precipitate by co-precipitation can be minimized by (tick all that may apply) A. Digestion B. Peptization C. Washing D. Re-precipitationWhat is the rationale of diluting the solution in the flask with washing distilled water at the start or in the middle of a titration? Can this step affect the calculations?Why is it normal to add a slight excess of silver nitrate solution when precipitating chloride ion?