Question

Why is heat applied on the beaker with salt solution

Answer 1

Answer:

A.  Heat filtrate to evaporate off the solvent (water).

B.  Pour salt water filtrate into an evaporating basin on a tripod over a Bunsen burner.

C.  Filter to remove the insoluble sand.

D.  Place the sand/salt mixture into a beaker and add water.

E.  Allow basin to cool & collect salt.

F.  Stir to allow the salt to dissolve in the water.