This model illustrates the solubility of salts of the metal series Mg, Ca, Sr, Ba and Pb. Use this model for testing the solubility of sulfates and carbonates of these metals. |
In order to implement a reaction for obtaining the desired salt, a flask of Na2SO4 or Na2CO3 should be dragged towards the test tube that contains the appropriate metal chloride.
Restore the initial conditions of the experiment by pressing the "Clear all" button. Green checkmarks and red crosses indicate whether the procedure is feasible or unfeasible. (For example, it is impossible to pour Na2SO4 or Na2CO3 twice in one test tube. "Clear all" button should be pressed prior to refilling the large flask). The amount of precipitate shown in the test tube is an indicator of solubility of sulfates and carbonates (the greater is the amount of the precipitate, the lower is the solubility). Note that the solubility of salts depends not only on the cation, but also on the anion. Among the sulfates of tested metals, only MgSO4 is completely soluble. Solubility of sulfates decreases in the following series:
CaSO4 > SrSO4 > PbSO4 > BaSO4.
There are no completely soluble salts among the carbonates of tested metals. The order of their solubility decreases in the following series: MgCO3 > CaCO3 > BaCO3 > SrCO3 > PbCO3.