Four separate solutions are prepared at 25 , C

CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases

Problem

Four separate solutions are prepared at 25\,

^\circ

C. W. pH = 3.00 X. pH = 11.00 Y.

[H_3O^+] = 2.5 \times 10^{-5}\,\text{M}

[OH^-] = 4.0 \times 10^{-10}\,\text{M}

Equal volumes of two of these solutions are mixed. Which pair will most closely produce a resultant mixture that is neutral? (a)

Y

and

Z

(b)

X

and

Z

(c)

W

and

X

(d)

X

and

Y