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liioro
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Joined: 09/11/2008 - 19:25
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hey
liioro
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Joined: 09/11/2008 - 19:25
Posts: 2
hey

so i am doing chemistry for CSEC examinations.. and i desperately need help with salt preparation.. i am completely lost as to what to do.. do you think you can help me?

chemistrysubjec...
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Joined: 10/06/2007 - 22:31
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Without meaning to be rude, I think you mean GCSE. If not, you will have to explain what GSEC is.

Salt preparation comes in three sections.

First you need to decide which kind of salt you are trying to make.

Insoluble salts are made by partner exchange (properly known as "double decomposition with precipitation").

Soluble salts can be made by adding an excess of an insoluble component (metal, metal oxide, metal hydroxide or metal carbonate) to an acid and then filtering off the excess.

If this is not possible, you may need to use the titration method where you find by experiment the exact amount of the acid and alkali that you need.

Some more information is on this website:

http://www.revisionworld.com/gcse/chemistry/changing-materials/salt-preparation-methods

I hope this helps. If you need more help or have another question please post again.