Question 48

(Multiple Choice)

A beaker contains 100 mL of NaOH solution at pH = 13.A technician carefully pours into the beaker 10 mL of HCl at pH = 1.Which of the following statements correctly describes the results of this mixing?


A)The concentration of Na⁺ ion rises.
B)The concentration of Cl⁻ ion will be 0.1 M.
C)The concentration of undissociated H₂O molecules remains unchanged.
D)The pH of the beaker's contents will be neutral.
E)The pH of the beaker's contents falls.

Answer