If 050 L of a Buffer Containing 1

Multiple Choice

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.