[sunflowerzz]

Hi, I'm having a little trouble with this experiment in my organic chemistry lab. In this lab we formed an azeotrope using cyclohexene, water, and sulfuric acid. In the procedure, we used this technique called "salting out" and one of the questions asked how much sodium chloride is really required to saturate a solution in 127 mL of water? How much is the correct amount of salt and how do you go about calculating the amount?

I'm not sure how I go about calculating this? I assume you need the solubility of sodium chloride in water but I'm not sure where to go from here. The solubility of sodium chloride in water is 359 g/L.

[Arkcon]

OK, 359 g/L -- that's pretty clear.  What's next given you volume?  If there was a solid that was soluble at a rate of exactly 100 grams in a liter, and I had exactly half a liter, would you be able to figure it out?