A pH or acid-base indicator is a compound that changes color depending on the pH of the substance that is added to it. Acids and bases make pH indicators turn different colors. Two substances that ...

1. Dissolve 6.5g KOH (potassium hydroxide) in 1600mL water and add several drops of universal indicator. Place in 2000mL graduated cylinder.

Place beakers containing distilled water and universal indicator reference set on the overhead projector. Add universal indicator to the beakers of water. Add a small amount of each salt to a ...

Figure caption, Colour chart of universal indicator colours at different ... is any compound formed by the neutralisation of an acid by a base or an alkali. It does not just refer to table salt.

Acids and bases are classes of materials that have different properties. Acid-base indicators change color depending on whether they are in acids or bases. Red cabbage leaves contain a substance ...

Make an acid-base indicator. Dr Yan uses some very colourful ... When the water in the bowl has turned a vibrant purple colour, sieve it into a pouring jug. Pour approx. 1cm of purple liquid ...