An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...

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

Students will be able to explain that the color that a substance turns a pH indicator is a characteristic property of that substance. Students will also be able to explain that different substances ...

Is it an acid, base, or neutral? Make your own acid-base indicator from red cabbage, then test various household substances. Acids and bases are classes of materials that have different properties.

neutral or alkaline by using indicators. The pH scale is used to measure acidity and alkalinity. When an acid is neutralised, it forms a salt. Making salts Acids react with metals, bases and ...

Universal indicator is supplied as a solution or ... In chemistry a salt is any compound formed by the neutralisation of an acid by a base or an alkali. It does not just refer to table salt.