Question

A gram of salt can be dissolved in 100 ml of water. What factors affect the solubility

Answer 1

Answer:

Explanation:

The temp. of solvent and the size of solute

Answer 2

The solubility of salt(solids) in water is affected by

• The solubility of salt(solids) in water is affected by Temperature
• The solubility of salt(solids) in water is affected by TemperatureCommon ion effect.
• Lattice energy and hydration energy of salt.

Temperature:-

• With an increase in temperature the solubility of solute increases.
• When heating the water, the kinetic energy of water molecules increases. Hence, it can readily break the ionic bond between the molecule of salt.

Common ion effect -

• The common ion effect decreases the solubility of salt.
• If more than one salt is present in a solvent( water) they all ionize in water.
• If the salt contains a common cation or anion, the salt contributes to the concentration of the common ion.
• The reaction shifts to the left, to decrease or to the relieve the stress of excess product (Le chatelier principal)
• As a result solubility of an unsparingly soluble salt is decreased because of the presence of a common ion.

Lattice energy and hydration energy -

• solubility of salt depends upon the lattice energy and hydration energy of salt.
• Lattice energy is equal to the amount of energy required to separate one mole of a solid ionic compound into ions.
• when lattice energy is high the hydration energy is low which implies the high solubility of salt.
• Lattice energy is directly proportional to solubility.

#spj3