Edexcel IGCSE Chemistry · Spec 1.3
Serial Dilution and the Particle Model
Covers carry out a serial dilution, Explain the colour change using particles and Distinguish dilution from diffusion.
Chemistry revision video
Serial Dilution and the Particle Model
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Spec 1.3
What you need to know
- Carry out a serial dilution
- Explain the colour change using particles
- Distinguish dilution from diffusion
Active recall
Quick check
Answer each question before opening the answer.
What must remain the same at every transfer?
The transferred volume and solvent volume
Why does the colour become paler?
There are fewer coloured solute particles per unit volume
How does dilution differ from diffusion?
Dilution lowers concentration using solvent; diffusion is net particle movement down a concentration gradient
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