As an example, the equilibrium of a weak acid can be represented but the equation below where HA is a weak acid and A- is its conjugate base. HA ↔ H+ + A- Phenolphthalein is typically used in this ...

Keywords acid-base indicators, color change, bromothymol blue, hydronium ions, hydroxide ions, ionization constant, methyl orange, methyl red, phenolphthalein, universal indicator Email us at ...