1. December 11, 2013 find your new seat
Pick up daily handouts. Turn in any late work. 1st & 4th TURN IN GAS STOICH HW.
When the bell rings be in your assigned seat, working on the Do Now. If I cannot hear the music you are too loud.
Do Now: (5min)
Of the three states of matter which has the most energy? Which has the STRONGEST IMF?
2. 2 Cl2(g) + C2H2(g)  C2H2Cl4(l)
How many liters of chlorine will be needed to make 75.0 grams of C2H2Cl4?

2. DO NOW REVIEW (5min)
Of the three states of matter which has the most energy? Which has the STRONGEST IMF?
2. 2 Cl2(g) + C2H2(g)  C2H2Cl4(l)
How many liters of chlorine will be needed to make 75.0 grams of C2H2Cl4?

3. HW QUIZ – 1st and 4th (10min) (half sheet)
1. Calcium carbonate decomposes at high temperatures to form carbon dioxide and calcium oxide: CaCO3(s)  CO2(g) + CaO(s) How many grams of calcium carbonate will I need to form 3.45 liters of carbon dioxide? 2. Draw the structure of a gas, describe the kinetic and potential energy and the Intermolecular forces.

4. Tutoring
Thursday (tomorrow) 2:30 – 3:30pm

5. Homework
Assignment #18* Vocabulary * *graded

6. MAKE UP WORK
ALL MAKE UP WORK IS DUE 11:59pm

7. Week of 12-9-13 Monday (12-9)- Presentations, HW quiz
Tuesday (12-10) – KMT, GAS STOICH, GAS QUIZ Wednesday (12-11) – Acids and Bases Inquiry Lab
Acids and Bases
Thursday (12-12) – Acids and Bases
Friday (12-13) – Gas Laws and Gas Stoich Test

8. They are everywhere.. In your food In your house EVEN IN YOU!!!!!
Acids & Bases
They are everywhere..
In your food
In your house
EVEN IN YOU!!!!!

9. Acids and Bases Intro Video (10min)
Eyes on the board paying attention
Get down 3 bullet points of what YOU think is most important.
Use at least 3 vocabulary words
Be prepared to share Hc

10. Reading – 10 mins
With your table group read through the passage provided and answer the question below the passage.
“Why Do Cut Apples, Pears, Bananas, and Potatoes Turn Brown?”
Be prepared to share.

11. Complete letters a. and b. with your table group (10min)
You will be given five apple slices. Put 5-6 drops of each solution on one individual apple slice. Keep a control slice with no solution. Keep track of the solution that is on which slice. Wait a few minutes (complete letter b while you wait). What happened to the apple slices? Record in your table.
Predict: would you rather use lemon juice or baking soda on an apple to prevent it from turning brown?

12. Flip your paper over to record notes
8 min

13. What is an acid? An acid is a solution that has an excess of H+ ions.
The more H + ions, the more acidic the solution.

14. Properties of an Acid Tastes Sour Conduct Electricity
Corrosive (Many acids can corrode fabric, skin, and paper)
Some acids react strongly with metals
Turns blue litmus paper red
Picture from BBC Revision Bites

15. Uses of Acids Acetic Acid = Vinegar
Citric Acid = lemons, limes, & oranges. It is in many sour candies such as lemonhead & sour patch.
Ascorbic acid = Vitamin C which your body needs to function.
Sulfuric acid is used in the production of fertilizers, steel, paints, and plastics.
Car batteries

16. What is a base? A base is a solution that has an excess of OH- ions.
Another word for base is alkali.
Bases are substances that can accept hydrogen ions

17. Properties of a Base Feel Slippery Taste Bitter Corrosive
Can conduct electricity. (Think alkaline batteries.)
Do not react with metals.
Turns red litmus paper blue.

18. Uses of Bases
Bases give soaps, ammonia, and many other cleaning products some of their useful properties.
The OH- ions interact strongly with certain substances, such as dirt and grease.
Chalk and oven cleaner are examples of familiar products that contain bases.
Your blood is a basic solution.

19. Complete letter c with your table group. Be prepared to share.
3 min

20. pH Scale pH is a measure of how acidic or basic a solution is.
The pH scale ranges from 0 to 14.
Acidic solutions have pH values below 7
A solution with a pH of 0 is very acidic.
A solution with a pH of 7 is neutral.
Pure water has a pH of 7.
Basic solutions have pH values above 7.

21. pH Scale
A change of 1 pH unit represents a tenfold change in the acidity of the solution.
For example, if one solution has a pH of 1 and a second solution has a pH of 2, the first solution is not twice as acidic as the second—it is ten times more acidic.

22. Complete letter d with your table group (10min)
d. Test the pH of the four solutions you are given by using a stir rod to put a drop of each solution on pH paper and comparing the color to the scale. Fill in the table with the pH and if an acid or base.

23. Acid – Base Reactions
A reaction between an acid and a base is called neutralization. An acid-base mixture is not as acidic or basic as the individual starting solutions.

24. Acid – Base reactions
Each salt listed in this table can be formed by the reaction between an acid and a base.

25. Revisit our Apples Complete letter e independently (5 min)
Reflect: would you rather use lemon juice or baking soda on an apple to prevent it from turning brown? Is it an acid or base? Explain why your choice.

26. Exit Ticket (half sheet) 7 min
Describe an acid
If a substance has a pH of 4 it is a(n) _________________.
If a substance has a pH of 7 it is a(n)__________________.
If a substance has a pH of 10 it is a(n) _________________.

27. Get a Head start on your Vocab HW!
HAVE A GREAT DAY!!