What is the solubility of x in mol dm if 25cm of it's saturated solution contains 4.og of x?(x=60g mol)
You must mean 25 cc (25 cm^3) and not 25 cm. Also I assume that is dm^3 and not dm.
4.0 g x (1,000 cc/25 cc) = ? g/dm^3
Convert to mols/dm^3 will be ?g/dm^3/60 = ?