Author Topic: Precipitation Reaction Flowchart  (Read 653 times)

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AgNO3

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Precipitation Reaction Flowchart
« on: June 02, 2004, 06:38:00 PM »
I have to test a solution that may contain any or all of the nitrate salts of Mg2+, Sr2+, Ca2+ and Ba2+. Because I cannot use a flame test, I'll have to test the solution by observing the percipitates formed (if any) when H2SO4, NaOH, (NH4)2C2O4 or K2CrO4 reacts with the above nitrate salts.

It has been experimentally shown that the nitrate salt of Sr2+ forms a precipitate aqueous solutions containing SO42-, C2O42-, and CrO42- compounds.
The nitrate salt of Mg2+ forms a percipitate with only the OH- compound.
The Nitrate Salt of Ca2+ forms a percipitate with OH- and C2O22-.
Finally, Ba2+ forms precipitates with everything Sr2+ reacts with.

Since the Stronium and Barium react with the same compound, something else must be done. I have the following materials:

All the compounds above in Aqueous form.
Acetic Acid
Microcentrifuge
Nitric Acid
Distilled Water
Test tubes, beakers, and flasks.

I'm not able to create an accurate flow-chart that could test for all or any of the nitrate salts. Please help.

Rhodium

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Flowchart
« Reply #1 on: June 02, 2004, 06:46:00 PM »
Using your post subject as a google keyword produced the following image:

http://wps.prenhall.com/wps/media/objects/602/616516/Media_Assets/Chapter16/Text_Images/FG16_17.JPG