Making salt DEMO

1 :

• Sodium sulphate 0.1 M

• Barium chloride 0.1 M

• Conical flask

• Filter funnel and paper

What happens when barium chloride reacts with sodium sulphate?

When barium chloride combines with sodium sulphate in the form of their aqueous solutions, a white precipitate of barium sulphate is formed which is insoluble in water. The reaction also creates sodium chloride, which remains dissolved in water and so cannot be seen. ... 

So this reaction is a chemical change, and mass doesn't change

2 :

• Phenolphthalein solution

• NaOH 1.0 M

• HCl 1.0 M

• Titration apparatus