Lesson 6 of 13
How strong is it
Show on a big screenA millilitre (mL) measures a small amount of liquid. Glass A has 3 spoons of sugar in 150 mL. Glass B has 5 spoons in 100 mL. Which tastes sweeter?
Step 1 of 2
- Glass A: 3 spoons in 150 mL.
- Glass B: 5 spoons in 100 mL. It is more concentrated.
Glass B tastes sweeter. It has more sugar in each 100 mL.
New words
- Concentration — the amount of solute in a fixed amount of solution.
- Dilute — little solute. Concentrated — much solute.
The rule
Relative means judged by comparing two glasses.
is the amount of solute in a fixed amount of solution. More solute in the same amount makes it more . and concentrated are relative words.
To compare, use the same amount of solution. 150 mL is 1.5 times 100 mL. So A is 3 ÷ 1.5 = 2 spoons per 100 mL. B is 5 spoons per 100 mL.
Pick a pair of glasses. Find the stronger one.
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Try the lab to finish this lesson.