How do you know Which salt forms a colored aqueous solution?

Answer 1

To determine which salts form a colored aqueous solution, you can look at the metal ions present in the salt. Transition metal ions, such as copper (Cu²⁺), cobalt (Co²⁺), and chromium (Cr³⁺), often produce colored solutions due to their ability to absorb specific wavelengths of light. Additionally, you can refer to solubility tables and chemical literature, which typically indicate the colors associated with various metal ions in solution. Conducting experiments with the salts in question can also provide direct observation of their color in solution.