Question

Which of the following should most favor the solubility of an ionic solid in the water? Note: high and low refers to the magnitudes (i.e. the absolute value) of lattice and hydration energies.

Select one:

A) a low lattice energy for the solid and a low hydration energy for its ions
B) low lattice energy for the solid and a high hydration energy for its ions
C) a high lattice energy for the solid and a low hydration energy for its ions
D) a high lattice energy for the solid and a high hydration energy for its ions

Answer 1

Answer:low lattice energy for the solid and a high hydration energy for its ions

Step-by-step explanation:

The lattice energy is the energy that holds the ions in the crystal lattice together. This energy must also be supplied for the lattice to disintegrate into its component ions. When this energy is lower than the energy released during the hydration of ions, the lattice easily breaks apart releasing the ions which are now strongly hydrated and the ionic solid is said to be soluble in water. Hence, solubility is favoured by lower lattice energy and higher hydration energy.