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soluble ions (1 Viewer)
- Thread starter sammie
- Start date
mitochondria
*Rawr*!
Tests for ions in solutions are always easy if the solution you have only contain the ion you are testing and its complementary ion (e.g. AgNO3, Ag is the one you are testing and NO3 is the complementary ion).
Therefore it is often very easy to choose which solution you need to test for the ion if you know the solubility rules, and this is usually done by percipitating the ion which you are testing:
The most common test for Ag+ ions is to use a solution that contains Cl- ions, for example, HCl. The Cl- ions will react with the Ag ions to form a white percipitate and the solution will turn black if it is exposed to a large amount of light. Solutions contain Iodide (I-) and Bromide (Br-) can also be used to test for the presence of Ag+.
As for testing Ag+ ions, Mercury ions(Hg2+) can also be tested using solutions that contain I-, Br- or Cl-.
I hope that helps
Good luck with the HSC!
Note: I-, Br- and Cl- are all group VII elements.
Therefore it is often very easy to choose which solution you need to test for the ion if you know the solubility rules, and this is usually done by percipitating the ion which you are testing:
The most common test for Ag+ ions is to use a solution that contains Cl- ions, for example, HCl. The Cl- ions will react with the Ag ions to form a white percipitate and the solution will turn black if it is exposed to a large amount of light. Solutions contain Iodide (I-) and Bromide (Br-) can also be used to test for the presence of Ag+.
As for testing Ag+ ions, Mercury ions(Hg2+) can also be tested using solutions that contain I-, Br- or Cl-.
I hope that helps
Good luck with the HSC!Note: I-, Br- and Cl- are all group VII elements.