CHEMISTRY
posted by Mike on .
At what temperature do KCL and KNO3 have the same solubility
If a saturated solution of KNO3 at 20.0 C is heated to 80.0 how much more could be dissolved?
If a saturated solution of KCL at 90.0 C is colled to 30.0 C how much of the solid will precipitate?
How much NaCL will dissolve in 350.0 g of water at 70.0C
How much KCL Will dissolve in 50. g of water at 50.0C
What mass of O2 can be dissolved in 2000.0 g of water at 30.0 C
Please help me work these out. I am doing a practice page before my test 2morrow and I need to know how to work them THANKS

You must have information on the solubility at various temperatures. We need that to help you.

Um Alls the sheet gave me is this.. But are you talking about graphs?

A graph would do if but you must read the graph. We need the solubility of KNO3 and KCl but if you have a graph all you need to do is read that first one off the graph. At what T on the graph is the solubility of KCl and KNO3 the same. The solubility curves should intersect at that point. In fact I think all of these can be read from the graph.

Oh okay THANKS SO MUCH!