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Friday, November 19, 2021

pH Colours

 Aim:

I want to find out what the colours of pH are.

Research:

Red Cabbage Indicater

Universal Indicater


Method:

Equipment:

  • Acid-Hydrochloric Acid
  • Base-Sodium Hydroxide
  • Test Tube Rack with Test Tubes
  • Universal Indicator
Instructions:
  1. Get all your equipment
  2. Put 10 drops of Universal Indicator into the test tube.
  3. Add different amount of acid and base into the test tube.
  4. Watch what happens when the colour evovles.
Results:
11.1 What is the pH value? | Acids, bases and the pH value | Siyavula

Discussion:

5.What are the pH colours?
R O Y G B I V/Red, Orange, Yellow, Green, Blue, Indigo, Violet.

4.How do you measure acid levels? You meausre acid levels on a strip of litmus paper.

3.What happens when you react an acid and a base? The reaction of an acid with a base is called a neutralization reaction. The products of this reaction are a salt and water, they like to fight each other and some pH colours can evolve when they both react.



















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