MediumChemistryHigh School (9–10)GeneralMixtures and Solutions › Mixtures, Solutions and ColloidsNumericalConceptual
At 293 K, 36 g of common salt dissolves in 100 g of water to make a saturated solution.
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
At , of common salt dissolves in of water to make a saturated solution. A student stirs of salt into of water at .
- What is the most salt that can dissolve?
- How much salt stays undissolved? Is the solution saturated?
Need a reminder? The key ideaShow
Solubility is the most solute that dissolves in of water at a given temperature. A solution that can take no more is saturated. For most solids it rises with temperature; cooling a hot saturated solution makes the extra solid crystallise.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) .
Step 2. (b) stays at the bottom. Since some salt cannot dissolve, the solution is saturated.
Answer: (a) . (b) ; yes, it is saturated.
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