At 318 K, the ionic product of water, KwK_{\text{w}}Kw, is 4.0 × 10-14 mol2 dm-6.
What is the pH of a 0.035 mol dm-3 aqueous solution of barium hydroxide, Ba(OH)2\text{Ba(OH)}_2Ba(OH)2, at this temperature?
11.9411.9411.94
12.2412.2412.24
12.5412.5412.54
12.8512.8512.85
