Flashcards
C2: Fertilisers (experiment)
Cards in this deck (4)
- 1Explain the process of producing a fertiliser from the reaction of an acid and an alkali. Step 1The alkali is titrated with the acid using an indicator to find out the quantities needed before the main batch is made, this is repeated until the results are consistent.
- 2Step 2Although the acid and alkali have fully reacted to produce a neutral solution of ammonium fertiliser. However, the this batch is contaminated with universal indicator.
- 3Step 3The titration results are used to repeat the experiment, now using the correct quantities.
- 4Step 4The dissolved fertiliser is heated to evaporate most of the water off, then left for the remaining solution to crystallise. The crystals are then filtered off.
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- All information is sourced from the Collins revision textbook, GCSE OCR Gateway B Higher.
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- Ella Maggs
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