1. Acids and Bases

2. What is an acid?
A compound that produces H+ ions when dissolved in water
Results in the solution containing a HIGH Hydrogen content
Usually sour tastingthe ones that are safe to taste (O.J., lemon juice, vinegar)

3. HIGH H= ACID
HCl H+ +Cl-

4. What is a base?
A compound that produces hydroxide ions (OH-) when dissolved in water
Results in a high OH- ion
Bland tasting

5. Base
HIGH OH- = BASE
NaOH Na+ + OH-
OH-

6. pH scale The measurement of how acidic or basic a substance is
pH means % of hydrogen
More hydrogen=lower pH= 1-6
Less hydrogen=higher pH= 8-12
Equal hydrogen to OH= pH 7
Usually seen on a pH scale

7. pH scale

8. Ph scale

9. Other indicators of acids and bases
An indicator changes color when the pH goes above or below a certain value
Litmus paper can be acidic or basic based
Acidic substances turn litmus paper…pinks/reds
Basic substances turn litmus paper… blues/violets

10. 3-2-1 Summary 3 common acids are…
2 ways to detect acids and bases are…
1 as a pH value means that…

11. Acid and Base facts
Your vomit contain hydrochloric acid…that’s why it burns coming up
Tums contain a chemical called calcium carbonate which is a base
Soda contains carbonic acid