Apuntes
Making Salts Flow Chart
Contenido del apunte (1)
Página 1
Is the salt soluble?
NO
Precipitation
Make 2 solutions, each one containing one ion of the salt to be made (use soluble salts!!!)
Mix the solutions
Filter off the precipitate which is the insoluble salt
Wash the residue with distilled water
Dry with filter paper or on warm gauze
YES
Is the base soluble?
YES
Titration
Add acid via burette to alkali + indicator until neutral (or until temperature stops rising)
Measure volume of acid added; throw away solution as it contains the indicator
Add same volume of acid to same volume of alkali without indicator
Obtain dry salt from solution
Add excess base
Add excess base to acid until no more will dissolve (warm the solution if necessary)
Filter off excess base
Obtain dry salt from the solution
NO
How to Obtain Dry Salt From a Solution
Concentrate solution until it becomes fully saturated by evaporating as much water as possible. The solution is saturated when crystals form on a glass rod dipped into it.
Allow the solution to cool and salt crystals to form
Filter the crystals to remove water
Wash crystals with a little water
Dry crystals with filter paper or place on a warm gauze.
Información
- Descripción
- How to make samples of pure dry crystals of a salt. This flowchart will help you to identify the correct method and describes each type of experiment.
- Creado por
- Joanna van Dyk · dic 2015
- Actualizado
- 10 ene 2017
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- 1.030
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