a saturated solution of barium chloride at 30c contains 150g water. how much additional barium chloride can be dissolved by heating this solution to 60c

Answer 1

You must have a table or graph (or something) in your text/notes that gives the solubility at 30 C and 60 C. I don't have those tables available. If you want to type that info in I can show you how to work the problem.