Which condition did you change?
Labs / Chemistry
Molarity & Dilution
Scoop solute into the beaker and set how much solution you have. Molarity is just moles divided by litres, so adding water spreads the same particles through more liquid and the colour fades. Chase a target concentration and watch the dilution equation stay balanced.
Labs / Chemistry / Molarity & Dilution
Molarity & Dilution
Scoop solute into the beaker and set how much solution you have. Molarity is just moles divided by litres, so adding water spreads the same particles through more liquid and the colour fades. Chase a target concentration and watch the dilution equation stay balanced.
Why it matters
Why explore this?
Chemistry connects events too small to see with changes we can measure. This model helps you link particles, energy, and conditions to an observable result.
Explore
Try the model
M 1.00 mol/Ln 0.50 molV 0.50 L✓ on target
Investigate
Questions to test
Predict first, try it in the model, then use what you observe to answer.
What to try
- Keep the solute fixed and pour in more water. Why does the molarity drop even though no solute left the beaker?
- Halve the volume. Does the concentration double, or change by something else?
- The particle count and the colour both react to your sliders — which one tracks moles, and which tracks molarity?
- Can you hit the 0.50 M target two different ways — with a lot of solute, and with only a little?
- If M₁V₁ always equals M₂V₂, what quantity is really being conserved when you dilute?
Explain
Make sense of what happened
Describe what happened at the particle or energy level, then connect it to the result you saw. A strong explanation names both the cause and the evidence.
Check
Before you leave
What happened to the particles or energy?
What observation supports your explanation?
If you can answer all three using evidence from the model, you understand the main idea. If not, return to Explore and change one setting at a time.