A few drops of dilute sodium hydroxide solution react to form a white precipitate with aluminium ions, calcium ions and magnesium ions. However, if excess sodium hydroxide solution is added: the ...

A series of precipitations and complex-ion-formations are performed in a single reaction vessel. Solutions ranging in concentration from 0.2 M to 2 M are suitable for this demonstration.

Calculate the amount of sodium hydroxide, NaOH, in 25.0 cm 3 of solution of concentration 0.1 mol/dm 3. If the amount in mol of a solute in a given volume of solution is known, its mass can also be ...