how is water hydration related to measurement

It depends on what the solvent is. If it is water, then it is called hydration. If the solvent is not water, then it cannot be called hydration.

Hydration is incredibly important because the body is nearly 60% water. Without proper hydration, the muscles and organs will begin to shut down. One factor of hydration is not drinking enough water, another is sun exposure.

salt water

A hydration equation gives information regarding the reactants and products formed when a substance dissolves in water. Since a hydration reaction takes place in water, the solvent water can be indicated above the arrow. For example, the hydration equation for a strong electrolyte, such as , can also be written as

Similarly, the hydration equation for a weak electrolyte, such as , and a nonelectrolyte, such as , can be written as