Hey readers,
Today I will be talking about pH colours, another experiment we did last week. I didn't get to post it last week but here it is.
Aim: I want to find out what the colours of pH are.
Research: We had to add a YouTube video about pH colours.
Method:
Equipment:
- Acid - hydrochloric acid
- Base - sodium hydroxide
- Test tube rack with a test tubes
- Universal indicator
Instructions:
- Get your equipment ready.
- Add 10 drops of universal indicator into the test tube.
- Put different amounts of acid and base into the test tube (depends on you).
- Observe what happens to the colour.
Results:
Discussion: What are the pH colours?
The indicators changes colours because of the different pH ranges. An indicator can only change colours when it is added with acidic or alkaline solutions. To see if a solution is acidic or alkaline, you can try to make an indicator from a red cabbage.
Alkaline solution - Combination of base solids that dissolved in water.
Acidic solution - More concentrations of hydrogen ions.
The range of the pH scale is from 0 to 14. 0 to 6 is acidic, 7 is neutral and 8 to 14 is alkaline.
Thank you for reading my blog, I will be posting next time, goodbye:)
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