Which conditions best help to dissolve an ionic salt in water? a. The lattice energy is small, and the enthalpy of hydration of the ions is large. b. The lattice energy is large, and the enthalpy of hydration of the ions is large. c. The lattice energy is small, and the enthalpy of hydration of the ions is small. d. The enthalpy of hydration of the cation is equal to the enthalpy of hydration of the anion, regardless of the lattice energy amount.
Which conditions best help to dissolve an ionic salt in water?
a. The lattice energy is small, and the enthalpy of hydration of the ions is large.
b. The lattice energy is large, and the enthalpy of hydration of the ions is large.
c. The lattice energy is small, and the enthalpy of hydration of the ions is small.
d. The enthalpy of hydration of the cation is equal to the enthalpy of hydration of the anion, regardless of the lattice energy amount.
e. The lattice energy is large, and the enthalpy of hydration of the ions is small.
As we know that the solubility of most salts depends on the lattice energy of the solid and the hydration energy of the ions. On descending the group, the hydration energy decreases more rapidly than the lattice energy, hence the compound become less soluble as the metals gets larger.
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