This document provides instructions for an experiment to classify common household substances as acidic, basic, or neutral using litmus paper. The experiment involves dropping samples of various household substances like vinegar, lemon juice, baking powder, and dish soap onto litmus paper and recording the color change to determine each substance's pH level. A table is included to record the results.

1. TESTING HOUSEHOLD
SUBSTANCES
Y E A R 1 0 – A C I D S A N D I N D I C AT O R S
G.Ajetrao

2. AIM
Aim: To classify common
household substances as
acidic, basic or neutral.
• Hypothesis:
• Write a appropriate
hypothesis

3. EQUIPMENT
• Spotting plate
• Litmus paper
• Common household substances
a. Coke/fizzy drink
b. Dishwashing detergent
c. Baking powder
d. Water
e. Vinegar
f. Lemon juice
g. Tea
h. Alka-Seltzer tablets
i. Sugar solution
j. Salt solution
k. Soap/Handwash
l. Toothpaste
m. Milk

4. METHOD
1. Put 3 drops of vinegar into the well of the spotting
plate.
2. Dip one end of the litmus paper in the vinegar.
3. Remove the strip.
4. Compare the colour of the solution to the colour on the
packet.
5. Record the colour and the pH in the result table.
6. Repeat steps 1 – 5 with other household substances
7. Take a photo of the result and upload it to google doc

5. RESULT
Household Substance
Coke/fizzy drink
Dishwashing detergent
Baking powder
Water
Vinegar
Milk
Lemon juice
Tea
Alka-Seltzer tablets
Sugar solution
Salt solution
Soap/Handwash
Toothpaste
Colour of litmus paper
pH of the Solution

6. DISCUSSION
Write an appropriate discussion.

7. CONCLUSION
• Write an appropriate conclusion.