What is the maximum amount of #"KCl"# that can dissolve in 300 g of water at 20°C?
The problem provides you with the solubility of potassium chloride,
This means that at
As you know, a saturated solution is a solution that holds the maximum amount of dissolved salt. Adding more solid to a saturated solution will cause the solid to remain undissolved.
In your case, you can create a saturated solution of potassium chloride by dissolving
Now, your goal here is to figure out how much potassium chloride can be dissolved in
#300 color(red)(cancel(color(black)("g H"_2"O"))) * "34 g KCl"/(100color(red)(cancel(color(black)("g H"_2"O")))) = "102 g KCl"#
You should round this off to one sig fig, since that is how many sig figs you have for the mass of water
#color(green)(|bar(ul(color(white)(a/a)color(black)("mass of KCl " = " 100 g")color(white)(a/a)|)))#