Heat of Hydration Calculator

Formula

The formula to calculate the heat of hydration is:

\[ H_{hyd} = H_s - H_{le} \]

Where:

\(H_{hyd}\) is the heat of hydration (kJ/mol)
\(H_s\) is the heat of solution (kJ/mol)
\(H_{le}\) is the heat of lattice energy (kJ/mol)

What is Heat of Hydration?

A heat of hydration is a measure of the energy absorbed when one mole of a substance is hydrated. It is an important concept in chemistry, particularly in the study of solutions and solvation processes.

Example Calculations

Example 1:

Heat of Solution (Hs): 100 kJ/mol
Heat of Lattice Energy (Hle): 50 kJ/mol

Using the formula:

\[ H_{hyd} = 100 - 50 = 50 \text{ kJ/mol} \]

Example 2:

Heat of Solution (Hs): 200 kJ/mol
Heat of Lattice Energy (Hle): 80 kJ/mol

Using the formula:

\[ H_{hyd} = 200 - 80 = 120 \text{ kJ/mol} \]