Concentration 4

25 g Aluminium chloride AlCl₃ is dissolved in 200 mL water. What is the concentration of aluminium chloride c(AlCl₃), aluminium ions c(Al³⁺) and chloride ions c(Cl^-), respectively?
• State the complete reaction equation that describes this process. Indicate the respective aggregate states with the respective letters (s, l, g, aq).
• Calculate the molar concentration of aluminium ions c(Al³⁺) and chloride ions c(Cl^-) in the solution.

Only red cells need to be completed. In the reaction equation stoichiometric coefficients of 1 also need to be stated explicitely (despite the fact that these are usually not written in a reaction equation).

Reaction equation: AlCl₃(s) + H₂O (l) → Al³⁺(aq) + Cl^-(aq)

	AlCl₃	H₂O	Al³⁺	Cl^-
Molar mass (g/mol)
Amount of Substance (mol)
Volume (L)
Concentration (mol/L)
Mass (g)