Acid, base and salt

bu elin

1. topic
THE CHARACTERISTIC OF
BASE

2. BASIC COMPETENCE
•CLASSIFYING AND COMMUNICATING
THE CHARACTERISTICS OF BASE

3. INDICATOR
•STUDENT ARE ABLE TO IDENTIFY THE
CHARACTERISTICS OF BASE

4. EQUIPMENT AND MATERIAL
•AMMONIA
•LITMUS PAPER
•BEAKER GLASS 100 ML
•ORANGE JUICE
•WATER

5. PROCEDURE
1.Prepare some kind of solution in the beaker glass with
the:
a. orange juice
b. ammonia
c. water
2. Immerse blue litmus paper into each solution?
3. Observe what will happen the change of the blue litmus
paper !
4. Write the color change of the litmus paper on the table?
5. Repeat the procedure point 1 up to point 3 by using the
red litmus paper
6. Write the color change of the litmus paper on the table?

6. The table of litmus paper color changes
blue
Red
waterammoniaOrange juiceLitmus paper

7. Table change of litmus paper
colour
blueBlueredblue
RedblueRedRed
waterammoniaOrange juiceLitmus paper
The table of litmus paper color changes

8. ANALYSIS
•Is there any litmus paper color change when the blue
litmus paper is immersed into the orange juice?
•Is there any litmus paper color change when the blue
litmus paper is immersed into the ammonia?
•Is there any litmus paper color change when the blue
litmus paper is immersed in to the water?

9. CONCLUSION
1. If the blue litmus paper is immersed into the orange
juice, the color of the litmus paper will change from blue
to red
2. If the blue litmus paper is immersed into the ammonia,
the color of the litmus paper will not change
3. If the blue litmus paper is immersed into water, the
color of the litmus paper will not change.
4. If the red litmus paper is immersed into the orange
juice, the color of the litmus paper will not change
5. If the red litmus paper is immersed into the ammonia,
the color of the litmus paper will change from red to blue
6. If the red litmus paper is immersed into water, the color
of the litmus paper will not change.