1-Barium sulfate and strontium sulfide both are placed into beaker of water.
a- Will the strontium sulfide dissociate?
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- If it does,write the equation showing the dissociation.
Numerous sites on the web claim SrS is insoluble in water but I think that is incorrect. I think it is soluble. CaS is soluble, BaS is soluble, SrS should be soluble.
SrS --> Sr^2+ + S^2-
To determine whether strontium sulfide (SrS) will dissociate in water, we need to analyze its solubility. Generally, sulfides are considered insoluble in water, except for alkali metal (Group 1) and ammonium (NH4+) sulfides. However, there are exceptions to this rule.
To check the solubility of strontium sulfide, we can refer to a solubility table or use a chemical database. According to the solubility rules, strontium sulfide is categorized as insoluble in water.
Therefore, strontium sulfide (SrS) will not dissociate in water. It will remain as an undissolved solid in the beaker.
The equation showing the dissolution of an insoluble compound is usually written as a precipitation reaction, which can be represented as:
SrS(s) → Sr2+(aq) + S2-(aq)
However, in this case, since strontium sulfide will not dissolve, the dissociation equation will not be applicable in the context of this specific experiment.