IntroductionAn 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 ...

National 5; Acids and bases Titrations. The pH scale measures the acidity or alkalinity of a solution. A pH less than 7 is acidic. Alkalis dissolve in water to give a pH greater than 7.

GCSE Chemistry (Single Science) Acids, bases and salts learning resources for adults, children, parents and teachers. ... Titration is a method used to prepare salts if the reactants are soluble.

acid-base titrations to find the concentration of an unknown solution of acid or base; redox titration to find the concentration of an oxidizing or reducing substance; ...