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The result: 1 liter of water can dissolve 1.34 Ã 10 â5 moles of AgCl (s) at room temperature. Compared with other types of salts, AgCl is poorly soluble in water. In contrast, table salt (NaCl) has a higher K sp and is, therefore, more soluble.
Do note that solubility of ionic compounds are not absolute. In fact, solubility in water is often given as a value in g/L of water. However, generally, we define solubility as: 1  Soluble substances can form a 0.1M solution at 25 Â°C. 2  Insoluble substances cannot form a 0.1M solution at 25 Â°C.t's just not as immediate as dissolution of the more soluble ionic compounds. You are probably familiar with this phenomenon: This forms because calcium carbonate dissolves. The rock is limestone, which is usually composed of pure calcium carbonate.