Universal indicator can be used to give an approximate pH value for a solution by comparing the colour of the indicator to the colour chart below. An indicator is a substance which will change ...
If universal indicator is added to a solution it changes to a colour that shows the pH of the solution. Universal indicator is a mixture of a variety of other indicators and can be used to measure ...
An acid-base indicator is a substance that changes color as the pH of the solution ... HA → H+ + A- Universal indicator is a wide range indicator and is composed of several different indicators. This ...