Both suspensions and colloids are heterogeneous mixtures. Define and characterize a suspension, listing similarities and differences to a colloid. Give several examples of suspensions.
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Both suspensions and colloids are heterogeneous mixtures. Define and characterize a suspension, listing similarities and differences to a colloid. Give several examples of suspensions.
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First, what are suspension and colloid solution?
SUSPENSION - It is an inhomogeneous mixture. In which solids are dispersed in liquids. It's called suspension. It is a heterogeneous mixture and the solute particles do not dissolve in the solvent but remain suspended. Particles (solute) can be seen with the naked eye.
COLLOIDAL SOLUTION -It is an inhomogeneous mixture. The colloid particles are uniformly dispersed in the solution due to the relatively smaller particle size compared to the suspension particles. It appears to be a homogeneous mixture, but in reality, it is a heterogeneous mixture.
Now the similarities between suspension and colloidal solutions:-
Differences
Suspension-
1. Particle size greater than [tex]10^{-7}[/tex]m.
2. Opaque.
3. Particles are visible to the naked eye.
4. The suspension particles settle to the bottom of the container when the solution is kept still for some time.
5. The suspension particles do not pass through the filter paper.
Colloidal-
1. Particle size between [tex]10^{-9}[/tex] to [tex]10^{-7}[/tex]m
2. Translucent.
3. Particles can be seen using a powerful microscope.
4. Colloid particles do not settle.
5. Colloidal particles easily pass through ordinary filter paper.
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