Solution Suspension Colloid

A solution is a mixture of two or more substances.

Properties of a Solution

The particles in a solution cannot be seen.

Light is not visible when it passes through a solution.

A solution cannot be separated with a filter.

A solution is a homogenous mixture.

An example would be sugar and water. The sugar is the solute and the water is the solvent. The solute is the item being dissolved and the solvent is what the item is being dissolved into.

This may help you remember the difference between solute and solvent.  Think of placing the loot into a vent to hide it. So the soLOOT goes into the solVENT.

A suspension is a mixture of a fluid with undissolved particles in it.

Properties of a Suspension

The solid particles may be visible and will settle over time.

The particles of a suspension can be filtered out.

Light is visible when it passes through a suspension.

A suspension is considered a heterogenous mixture.

The solid particles are called the internal phase and the fluid is called the external phase.

An example would be muddy water and sand in water. The sand does not dissolve into the water but is mixed into the water and will settle over time.

A colloid is a mixture consisting of very small insoluble particles dispersed into a fluid.

Properties of a Colloid

Light is visible when it passes through a colloid.

You cannot use a filter to filter out what is dispersed and the particles do not settle over time.

A colloid is a homogenous mixture.

Examples of a colloid include, glue, milk, and fog.

A colloid has a dispersed phase (the suspended particles) and a continuous phase (the medium of suspension).The continuous phase can be a solid,liquid,or a gas.

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Saturated - Unsaturated- and Supersaturated Solutions- What is the diffe...

Saturated, Unsaturated and Supersaturated Solutions

Let's take a solvent like water and mix in salt at a given temperature. 

Water can only dissolve so much salt you can look these up or use a solubility curve. 

When water is at 90 degrees Celsius it can dissolve 40 grams of salt in 100 grams of water. The water is the solvent and the salt is the solute. 

When you have an unsaturated solution less solute then the solution is capable of dissolving is mixed in. 

Solutes in an unsaturated solution dissolve completely. 

Using salt as an example, if we mix in 20 grams of salt at 90 degrees it will be unsaturated.  All of the salt will be dissolved. 

With a saturated solution there is so much solute present that if you were to add any more it will not dissolve and excess salt will fall to the bottom of the container. 

If you mix in 40 grams of salt at 90 degrees into 100 grams of water. 

A supersaturated solution contains more than the maximum amount of dissolved solute then the solvent is able to dissolve at a given temperature. 

If you mix in 50 grams of salt the extra salt will sink to the bottom of the container. 

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