Pages

Thursday, 11 June 2020

Testing pH ๐Ÿฅผ

Acid And Bases

Testing pH

pH SCALE AS AN INDICATOR - ACIDS AND BASES
(Acidic is acid and alkaline is a base)
Water is neutral. 


Aim: To test the pH of a range of household chemicals. 

Equipment: A variety of household chemicals, spotting tile, red litmus paper, blue litmus paper, Universal indicator solution, and safety glasses.

Method:
The method for this experiment is quite easy, surprisingly it's only three simple steps... 


Step 1 
Add a few drops of each chemical to a spot on your spotting tile. If a substance is solid or powdered you will need to mix it with a few drops of water before testing.


Step 2
Test the chemicals with litmus papers.


Step 3 
Test each chemical with a few drops of Universal Indicator.


And there you have it that's how you test the pH levels of household chemicals. Pretty easy isn't it? Make sure you record your results and compare them to your hypothesis.

Science Source - Universal indicator

My Results 

Chemical Being Tested
Colour in blue litmus
Colour in red litmus 
Colour in Universal Indicator
Fabric Softener 
Red
Red
Orange
Vinegar 
Red
Red
Red
Floor Cleaner 
Violet 
Violet 
Green
Dishwash Power
Blue
Blue
Blue
Toilet Cleaner 
Red
Red
Red

Conclusion 

Chemical Being Tested
Acid or Base?
Evidence from investigation
Fabric Softener 
Acid
Because it turned red which is indicating that it’s acid.
Vinegar 
Acid
When the indicator touched the vinegar it went straight to red.
Floor Cleaner 
Base
Due to it turning blue.
Dishwash Power
Base
Turned violet which is the colour of a base
Toilet Cleaner 
Acid
The results were red.

Indicators - Acids and Bases

No comments:

Post a Comment

To support my learning I ask you to comment as follows:
1. Something positive - something you like about what I have shared.
2. Something helpful - add more info or ask me a question.
3. Something thoughtful - how have you connected with my learning?

Note: only a member of this blog may post a comment.