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The following shows the solubilities of various salts in water:
All sodium, potassium and ammonium salts are soluble*
All nitrates are soluble
Most sulfates are soluble (not lead, barium or calcium)
Most chlorides, bromides and iodides are soluble (not lead or silver)
Most oxides, carbonates and hydroxides are insoluble (not sodium, potassium or ammonium)
*There are some obscure ones which are not soluble which you will not meet at "A" level. You may want to research this.
Try to work out which of the following salts are soluble. See if you can do this without reference to the above table (you'll have to learn it first!). You can check your answer by clicking on the salt. The soluble ones will turn pink and the insoluble ones will turn green.
|
copper(II) sulfate |
iron(III) nitrate |
magnesium carbonate |
|
lead(II) bromide |
iron(III) hydroxide |
potassium iodide |
|
silver iodide |
tin(II) sulfate |
ammonium carbonate |
|
copper(II) oxide |
zinc hydroxide |
silver chloride |
|
sodium bismuthate |
iron(II) sulfate |
zinc sulfate |
|
calcium bromide |
iron(III) oxide |
magnesium bromide |
|
silver bromide |
lead(II) chloride |
barium nitrate |
|
barium sulfate |
iron(II) hydroxide |
copper(II) carbonate |
|
iron(III) chloride |
lead(II) sulfate |
potassium hydroxide |