As an example on how to use the solubility rules, predict if a precipitate will form when solutions of cesium bromide and lead II nitrate are mixed. The potential precipitates from a double-replacement reaction are cesium nitrate and lead II bromide. According to the solubility rules table, cesium nitrate is soluble because all compounds containing the nitrate ion, as well as all compounds containing the alkali metal ions, are soluble. Most compounds containing the bromide ion are soluble, but lead II is an exception.
Therefore, the cesium and nitrate ions are spectator ions and the lead II bromide is a precipitate. The balanced net ionic reaction is:.
Substances that dissolve in water to yield ions are called electrolytes. Nonelectrolytes are substances that do not produce ions when dissolved in water. Solubility rules allow prediction of what products will be insoluble in water. This page was constructed from content via the following contributor s and edited topically or extensively by the LibreTexts development team to meet platform style, presentation, and quality:.
Austin State University with contributing authors. Precipitates are indicated using s for solid. Remember, a precipitate does not always form! Small amounts of compounds with low solubility considered insoluble actually do dissolve in water. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile.
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