At 25°C, a saturated solution of cerium(III) hydroxide (Ce(OH)3) contains 5.1 x 10–6 moles of the compound in one liter of solution.

What is the reaction equation?

Ce(OH)3(s) mc001-1.jpg Ce3+ (aq) + 3OH-(aq)

Ce(OH)3(s) mc001-2.jpg Ce3+ (aq) + OH-(aq)

3Ce3+(aq) + OH-(aq) mc001-3.jpg Ce(OH)3(s)

Ce(OH)3(s) mc001-4.jpg Ce3+ (aq) + (OH-)3(aq)

Question

At 25°C, a saturated solution of cerium(III) hydroxide (Ce(OH)3) contains 5.1 x 10–6 moles of the compound in one liter of solution.

What is the reaction equation?




Ce(OH)3(s) mc001-1.jpg Ce3+ (aq) + 3OH-(aq)


Ce(OH)3(s) mc001-2.jpg Ce3+ (aq) + OH-(aq)


3Ce3+(aq) + OH-(aq) mc001-3.jpg Ce(OH)3(s) 


Ce(OH)3(s) mc001-4.jpg Ce3+ (aq) + (OH-)3(aq)

anonymous · Answer

This is the dissociation of "insoluble" substance in water. The equation is $\rm Cr(OH)_3~(s)\longrightarrow Cr^{3+}(aq)+3OH^-(aq)$