Page 272 - Chemistry eBook

Is the Solution Saturated?
Find the intersection point of the temperature and the line representing the substance.
1. If the amount of solute is the same as the solubility value on the
left of the graph (on the line), the solution is saturated.
2. If the amount of solute is less than the solubility value on the left of the graph (under the line), the solution is unsaturated.
3. If the amount of solute is more than the solubility value on the left of the graph (above the line), the solution is supersaturated.
Under the line means that the solution is unsaturated.
Something that’s above is elite/super. If it’s above the line, it’s a supersaturated solution.
What type of solution does 15 grams of KClO3 form at 60°C in 100 grams of water?
1 On Reffy, Table G (p. 3), find the intersection of 60°C (bottom of table) and 15 grams (left side of table).
2 Check if this point falls out on, under, or above KClO3’s line.
3 Since this point falls out under the KClO3’s line, we know that this solution is unsaturated.
271 © UNIT 7: SOLUTIONS / SOLUBILITY