Dilute or concentrated
How much solute in the solution?
Two salt solutions
One glass of water has 1 spoon of salt. Another glass has 2 spoons.
Which solution is more concentrated?
What this lesson covers
The idea
Concentration is the amount of solute in a fixed quantity of solution (or solvent); a solution with less solute is dilute and one with more is concentrated, and these are relative terms.
Two salt solutions
One glass of water has 1 spoon of salt. Another glass has 2 spoons.
Which solution is more concentrated?
- The one with 2 spoons
- The one with 1 spoon
- Both are equally concentrated
Compare solutions
Open each tab.
Concentration
Concentration tells how much solute is present in a fixed quantity of solution or solvent. Dilute and concentrated are relative terms.
Concentration = amount of solute in a fixed quantity of solution (or solvent). Dilute: less solute. Concentrated: more solute. They are relative terms.
Notes
Concentration: amount of solute in a fixed quantity. Dilute = less, concentrated = more (relative terms).
Check yourself
A solution with less solute is …
A solution with more solute in a fixed quantity is …
Which is more concentrated?
'Dilute' and 'concentrated' are …
- concentrated. A concentrated solution has more solute.
- dilute — correct. Yes!
- saturated always. Dilute means less solute.
- dilute. A dilute solution has less solute.
- a pure substance. It is a concentrated solution.
- concentrated — correct. Yes!
- 4 spoons of salt in 50 mL of water — correct. Yes!
- 2 spoons of salt in 100 mL of water. It has less salt in more water, so it is less concentrated.
- They are equal. The 4 spoons in 50 mL has more salt in less water.
- fixed numbers. They compare one solution with another.
- relative terms — correct. Yes!
- units of measure. They are relative terms, not units.