1. Solute and Solvent
The solvent is the substance in which the solute is dissolved. This is the primary ingredient in a solution.
The solute is the substance that is dissolved in the solvent.

2. Solute and Solvent Water is the universal solvent.
If ever there is a solution that is water and another compound, then the solvent is always water.
When water is the solvent, it is an aqueous solution.

3. Concentration
The concentration of a solution is the amount of a particular substance in a given quantity of solution.
It expresses the ratio of solute to solvent

4. Stoichiometry Review To convert from grams to moles:
To convert from moles to grams:

5. Molarity
Molarity is a concentration unit of a solution expressed as moles of solute dissolved per liter of solution.

6. Class Example
I have 72 g of HCl that I dissolved in 4 L of solution. What is the concentration of this final solution?

7. Table Talk
In order to torture this gummy bear you need you make a solution of KClO3 you dissolve 1,220 g of KClO3 in 1 L of water. What is the molarity of your final solution?

8. Hold Up! We Can Work in Reverse
We can work backwards if we have a molarity and volume of solution.
From this we can determine both the moles and mass of our solute
Molarity of the solution
Molar Mass of solute

9. Class Example
If you have a 3 L of a 0.6 M solution of AgNO3, then what mass of AgNO3 is contained in this solution?

10. Stop and Jot
If all the water in 430 mL of a 0.45 M NaCl solution evaporates, what mass of NaCl remains?