7. Is AuCl3 Soluble In Water?

Compound 7, also known as AuCl3, is partially soluble in water. When AuCl3 is added to water, it undergoes hydrolysis, forming a mixture of compounds including H[AuCl4] and H2[AuCl6]. The solubility of AuCl3 in water increases with temperature and can be enhanced by adding hydrochloric acid. However, the solubility of AuCl3 in pure water is limited, and significant amounts of undissolved solid may remain in the solution.