Will a higher or lower KSP value 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 does Ksp affect precipitation?

Osp > Ksp the solution is super saturated – the solubelity is exceeded. a precipitate will form and will continue to form until the concentration of ions in the solution decrease to such a point that Qsp = Ksp. when the system is at equilibrium. no precipitation will occur.

What will 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 …

Which cation would precipitate first?

Re: How do you know which cation will precipitate first? Do remember that if the Cations are of different charge the Ksp may be lying to you, but in the case where both ions are the same charge the Ksp values should tell which one precipitates first.

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Is baso4 a precipitate?

By examining the solubility rules we see that, while most sulfates are soluble, barium sulfate is not. Because it is insoluble in water we know that it is the precipitate.

Will AgCl or Ag2CrO4 precipitate first?

When a concentrated solution of silver nitrate is added slowly, white AgCl(s) begins to precipitate. After most of the Cl–(aq) has been consumed, red Ag2CrO4(s) starts to precipitate.

How do you find if something will precipitate?

If the value of the ion product is greater than the value of the Ksp, then a precipitate will form. The formation of the precipitate lowers the concentration of each of the ions until the ion product is exactly equal to the Ksp, at which point precipitation ceases.

Is agno3 soluble or insoluble in water?

Silver Nitrate is highly soluble in water but is poorly soluble in most organic solvents, except acetonitrile (111.8 g/100 g, 25°C).

What does a lower Ksp mean?

Ksp (Solubility product constant) is the equilibrium between a solid and its respective ions in a solution. The value of the constant identifies the degree of which the compound can dissociate in water. For example the higher the Ksp the more soluble the compound is.

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.

When can you compare Ksp values?

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.

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