If 0.50 L of a buffer containing 1.0 mol H₂PO₄− and 1.0 mol HPO₄²⁻ is diluted to a volume of 5.0 L,the pH A) increases by 1. B) decreases by 1. C) increases by 10. D) decreases by 10. E) remains unchanged.

Question

Quizplus · Accepted Answer

The pH of a buffer solution remains relatively constant upon dilution because the concentration of buffer components, and therefore the buffer capacity, remains unchanged. Therefore, the pH of the buffer after dilution will remain unchanged.

If 050 L of a Buffer Containing 1