Both members of the conjugate acid-base pair in a buffer solution need to be weak (weak acid and weak base). The weak acid component neutralizes added base and the weak basic component neutralizes ...

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 ...

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 ...