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Thursday, March 11, 2021

Ph Testing experiment

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, UI solution.

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

2. Test the chemicals with litmus paper. 

3.Test each chemical with a few drops of UI (universal indicator). 


Results:

Chemical being tested

Colour in blue litmus

Colour in red litmus

Colour in UI

Dishwasher Powder

Blue 

Blue

Blue

Floor Cleaner

Blue

Blue

Yellow

Toilet Cleaner

Red

Red

Red

Baking Soda

Blue

Blue

Blue




Chemical being tested

Acid or base?

Evidence from investigation

Dishwasher Powder

Base

Litmus paper and UI has turned blue

Floor Cleaner

Base

Both Litmus paper turned blue

Toilet Cleaner

Acid

Everything turned red

Baking Soda

Base

Everything turned blue


Conclusion/Discussion:  It turns out that Dishwasher powder, Floor cleaner and Baking soda are all bases while toilet cleaner is the only strong acid, by also using ROYGBIV, Red, Orange, Yellow, Green, Blue, Indigo and Violet (ROYGBIV) is used to show the pH level of a chemical. Such as Red 1, a strong acid to 14 a strong base, and you're probably wanting to know what neutral is right? Its a pH of 7 Green which is basically water. A base is an acid opposite and will remove hydrogen ions from the solution, all bases have Hydroxide ions while acids have hydrogen ions.

Conclusion: Other than that our experiment did work but except for that one yellow you probably saw in the table, I'll guess I will have to try and do something different to make that a better result. 







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