From the list, it is clear that AgI is the least soluble species. Ksp are extensively tabulated, especially for salts of precious metals.
Which of the following salts is the least soluble?
Thus, the least soluble compound is HgS.
How do you determine which salt is more soluble using Ksp?
The relative MOLAR solubility of salts (saturated solution) can be determined by comparing Ksp values. The greater the Ksp the more ions are in solution, hence the greater the molar solubility. However, you can only directly compare salts that give equivalent numbers of ions in solution.
Does a higher Ksp precipitate first?
When two anions form slightly soluble compounds with the same cation, or when two cations form slightly soluble compounds with the same anion, the less soluble compound (usually, the compound with the smaller Ksp) generally precipitates first when we add a precipitating agent to a solution containing both anions (or …
How is Ksp calculated?
Let’s do an example: The solubility of Ag2CrO4 in water is 1.31 x 10-4 moles/L. Calculate the value of Ksp . Using mole ratios, the [Ag+] will go up by (2 x 1.31 x 10-4 moles/L) = 2.62 x 10-4 moles/L.
What 4 factors affect solubility?
Factors affecting solubility
- Temperature. Basically, solubility increases with temperature. …
- Polarity. In most cases solutes dissolve in solvents that have a similar polarity. …
- Pressure. Solid and liquid solutes. …
- Molecular size. …
- Stirring increases the speed of dissolving.
Is solubility product directly proportional to solubility?
A substance’s solubility product (Ksp) is the ratio of concentrations at equilibrium. Molar solubility, which is directly related to the solubility product, is the number of moles of the solute that can be dissolved per liter of solution before the solution becomes saturated.
What is the least soluble in water?
The organic compound that is the least soluble in water is octane.
How do you know if something is soluble or insoluble?
If there two rules appear to contradict each other, the preceding rule takes precedence.
- Salts containing Group I elements (Li+, Na+, K+, Cs+, Rb+) are soluble . …
- Salts containing nitrate ion (NO3–) are generally soluble.
- Salts containing Cl –, Br –, or I – are generally soluble. …
- Most silver salts are insoluble.