1. Molarity Objective: Students will understand a. solution terminology b. The factors that affect solubility c. Calculate the molarity of solutions

2. What is a Solution? A solution is a mixture of two or more substances (normally one is a liquid) where the composition is the same throughout. A solution is a mixture of two or more substances (normally one is a liquid) where the composition is the same throughout.

3. What are the components of a solution?

4. Draw a solution

5. The Polarity of Water

6. How Salt Dissolves in Water

7. The Ions Become Surrounded

8. Factors that Affect Solubility

9. Nonpolar Solutes and Water

10. The Structure of Sugar

11. The Second Factor of Solubility Temperature Temperature Normally, you can dissolve more of a solid in hot water than you can in cold water. Normally, you can dissolve more of a solid in hot water than you can in cold water. Cold water can dissolve more gasses substances than hot water Cold water can dissolve more gasses substances than hot water Now show the video. Now show the video. Now show the video Now show the video And this one And this one And this one And this one

13. Terms You Should Know Saturated solutions contain the maximum amount of solute that it can dissolve Saturated solutions contain the maximum amount of solute that it can dissolve Supersaturated solutions have been heated up and saturated and then cooled. Supersaturated solutions have been heated up and saturated and then cooled. Concentrated solutions contain more solute than solvent Concentrated solutions contain more solute than solvent Dilute solutions contain much more solvent than solute Dilute solutions contain much more solvent than solute

14. What is PPM? PPM stands for Parts Per Million PPM stands for Parts Per Million If 3.00 grams of NaCl is dissolved into 5000 grams of water, what is the PPM? If 3.00 grams of NaCl is dissolved into 5000 grams of water, what is the PPM? Setup as a ratio Setup as a ratio

15. Mercury and PPM If the allowable mercury level in milk is 0.0030PPM, how many grams of mercury can there be in 250 grams of milk? If the allowable mercury level in milk is 0.0030PPM, how many grams of mercury can there be in 250 grams of milk?

16. Define Molarity Molarity is the ratio of moles solute to liters of solution. Molarity is the ratio of moles solute to liters of solution. To find the molarity of a solution first find the moles of solute To find the molarity of a solution first find the moles of solute then find the liters of solution then find the liters of solution then divide the moles by the liters then divide the moles by the liters

17. Calculate the Molarity 10.0 grams of NaOH is dissolved in 500 ml 10.0 grams of NaOH is dissolved in 500 ml Find the moles of solute. Find the moles of solute. Now find the liters of the solution Now find the liters of the solution

18. Do some problems on the back of the paper