1. Making Solutions!

2. Solutions and Mixtures
How are mixtures and solutions different?
In a mixture, you can see both substances without using a microscope
Solutions are groups of molecules that are mixed up in a completely even distribution
In a Solution, you cannot tell there is more than one substance
Scientists say that solutions are homogenous systems.

3. Lab: Teacher Demonstration
Let's compare sugar in water to sand in water.
What are we creating? A solution or a mixture?
Sugar dissolves and is spread throughout the glass of water.
The sand sinks to the bottom.
The sugar-water could be considered a solution.
The sand-water combination is a mixture.

4. Lab: Will it dissolve?
Our next lab will test whether we are creating solutions or mixtures.
In order for a solution to be created, what needs to happen to the solute?
The solute must dissolve into the solvent in order for a solution to be created.

5. Solutions and Mixtures
Everything in a solution is evenly spread out and completely mixed together.
What if we are mixing 250 mL of water and only 5 mL of sugar? Is this still a solution even if the parts mixed together are not equal?
 Talk about this with your table group!
The answer is YES!
If there is a difference in the amount of solute added to the solvent, then solution is said to have a different concentration.
Other types of mixtures can have a little more of one thing (higher concentration) on one side of the liquid when compared to the other side.

6. Lab: Teacher Demonstration
Lets mix…
5 mL of sugar with 250 mL of water
10 mL of sugar with 250 mL of water
Are these both solutions? Yes or No
Are these solutions the same? Yes or No
What is different between these solutions?
If there is a difference in the amount of solute added to the solvent, then solution is said to have a different concentration.
Other types of mixtures can have a little more of one thing (higher concentration) on one side of the liquid when compared to the other side.

7. Concentration of Solutions
The concentration of a solution tells us about how much solute has been added to one solution compared to another.
If there’s a little more of one thing (eg. Sugar) in a solution compared to another, then this solution is said to have a higher concentration
Which solution will have a higher concentration?

8. Simple solutions
A simple solution is basically two substances that are going to be combined.
A solute is the substance to be dissolved (sugar).
The solvent is the one doing the dissolving (water).
As a rule of thumb, there is usually more solvent than solute.
Be patient with the next sentence as we put it all together. The amount of solute that can be dissolved by the solvent is defined as solubility. That's a lot of "sol" words.

9. Can anything be in a Solution?
Pretty much. Solutions can be solids dissolved in liquids. When you work with chemistry or even cook in your kitchen, you will usually be dissolving solids in liquids.
Solutions could also be gasses in other gases, and liquids in liquids.
If you mix two elements up and they are in an even distribution, they are a solution.
When elements are combined, but in unequal amounts, this is called a compound.
It is rare to find people making solid-sold solutions, but this is possible! How do you think a solid-solid solution would be created?
Solid-Solid solutions is usually a type of liquid/gas solution that has hardened!

10. SOLUTION EXAMPLE
Gas-Gas Air
Gas-Liquid Carbon Dixoide in Soda
Liquid-Liquid Gasoline