Science · Solutions & reactions
Solutions, Concentration, and Solubility
Estimated time includes reading and one quiz. Take the time you need.
Start here: key ideas
- A solute dissolves in a solvent to make a solution.
- Concentration is solute amount divided by solution volume.
- Adding solvent lowers concentration.
- Solubility is the maximum amount that can dissolve under given conditions.
- Polar substances tend to dissolve in polar solvents.
What you’ll be able to do
- Identify solute and solvent.
- Calculate or compare concentration.
- Tell concentration from solubility.
- Predict effects of temperature and polarity.
Identify solution parts, compare concentrations, and predict simple solubility changes.
Optional review
If you’d like to review the basics, visit Properties and Changes of Matter. You can start this lesson without completing those first.
Solute and solvent
A solution is a uniform mixture. The solute is dissolved. The solvent does the dissolving and is often present in the greater amount.
In salt water, salt is the solute and water is the solvent. Solutions may be solid, liquid, or gas; they are not limited to water.
Optional examples beyond water
Roles also apply to nonliquid mixtures: nitrogen is the main solvent in air; copper can be the solvent in brass.
You've used your 1 free study guide
Your free topic allowance is shared across Reading, Math, Science and English. This first section is a preview. Unlock every study-guide
topic — full lessons, inline checks, the complete practice bank +
timed exam simulation — with a free trial.
Your one free topic stays free, always.
$0 today — card required to start your trial. Cancel anytime before day 3.
Already subscribed? Log in.