Asked by Maame

1)20 mL of a saturated of potassium nitrae at 50oC. Approximately, what mass of solid will precipiatae from the solution?

2)At 80oC, what mass of sodium dissolves in 1.0L of water

3.What minimum temperature is required to dissolve 24 g of potassium nitrate in 40 g of water? is cooled to 20oC.
Answered by DrBob222
Surely you have a table or a graph in your text or notes. I don't have solubilities of every salt memorized.
Answered by Maame
okay, thank you, but i don't understand number two
Answered by DrBob222
I don't either. Unless the idea is that Na will react with H2O to form NaOH and you have a table or graph that tells you the solubility of NaOH. If you have that I can help further.
Answered by Maame
At 80oC, what mass of sodium chloride dissolves in 1.0L of water
Answered by Maame
sorry, i made a mistake
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