Final answer:
In copper(II) sulfate pentahydrate, there are four coordinated H2O molecules associated with Cu(II) and one lattice water molecule hydrogen bonded to other components.
Step-by-step explanation:
In copper(II) sulfate pentahydrate, the structure can be described as having four water molecules that are coordinated or directly bonded to the Cu(II) ion, forming part of the complex ion. The remaining fifth water molecule is not directly bonded to the copper ion but is instead associated with the crystal lattice, typically hydrogen-bonded to the sulfate anions or other water molecules in the structure, known as lattice or crystallization water. The coordinated water molecules are part of the coordination complex around the copper ion, while the lattice water is associated with the crystal lattice structure of the compound.