Write the name from the formula or the formula from the name...

Write the name from the formula or the formula from the name for each hydrated ionic compound. \begin{equation} \begin{array}{l}{\text { a. } \operatorname{cobalt}(\mathrm{II}) \text { phosphate octahydrate }} \\ {\text { b. } \mathrm{BeCl}_{2} \cdot 2 \mathrm{H}_{2} \mathrm{O}} \\ {\text { c. chromium(III) phosphate trihydrate }} \\ {\text { d. LiNO }_{2} \cdot \mathrm{H}_{2} \mathrm{O}}\end{array} \end{equation}

Write the name from the formula or the formula from the name for each
hydrated ionic compound.
\begin{equation}
\begin{array}{l}{\text { a. } \operatorname{cobalt}(\mathrm{II}) \text { phosphate octahydrate }} \\ {\text { b. } \mathrm{BeCl}_{2} \cdot 2 \mathrm{H}_{2} \mathrm{O}} \\ {\text { c. chromium(III) phosphate trihydrate }} \\ {\text { d. LiNO }_{2} \cdot \mathrm{H}_{2} \mathrm{O}}\end{array}
\end{equation}

Key Concepts

Hydrated Ionic Compounds

Hydrated ionic compounds are salts that include a definite number of water molecules incorporated into their crystal structures. These water molecules, often called waters of hydration, are chemically bonded within the lattice and are included in the formula as, for example, '· nH2O', where n indicates the number of water molecules per formula unit.

Chemical Nomenclature

Chemical nomenclature refers to the systematic approach used to name chemical compounds based on their composition and structure. For ionic compounds, this means naming the cation first followed by the anion, and including the oxidation state of the metal if necessary. In hydrated compounds, the water is indicated after the salt part with a dot and the number of water molecules.

Water of Hydration

Water of hydration denotes the water molecules that are integrated into the crystal structure of a compound. These molecules are coordinated alongside the ionic compound, influencing properties such as stability and physical characteristics, and are explicitly represented in the chemical formula of the substance.

Ionic Compound Formula Conventions

Ionic compound formula conventions involve balancing the overall electrical charge by appropriately combining the cations and anions. The formulas also detail the exact stoichiometry, including any associated water molecules in hydrated compounds. This ensures that the chemical formula accurately reflects both the composition and the ratio of the constituent parts.

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