Question

A buffer resists change in pH when amount of acid or base is added to it. Select one: a)an equal b)twice as much acid as base c)a small d) an unequal e)a large

Answer 1

A buffer resists change in pH when an equal amount of acid or base is added to it. The most effective buffer contains equal concentrations of a weak acid and its conjugate base. The buffer capacity is the amount of acid or base that can be added to a buffer solution before a significant change in pH occurs.

Step-by-step explanation:

A buffer resists change in pH when an equal amount of acid or base is added to it. An equal concentration of a weak acid and its conjugate base creates the most effective buffer. The buffer capacity is the amount of acid or base that can be added to a buffer solution before a significant change in pH occurs. Buffers with more initial solute dissolved in them have larger capacities.