What is the pH of a 0.015 mol dm-3 solution of barium hydroxide, Ba(OH)2\text{Ba(OH)}_2Ba(OH)2, at 298 K?
(Assume Kw=1.00×10−14 mol2dm−6K_w = 1.00 \times 10^{-14}\text{ mol}^2\text{dm}^{-6}Kw=1.00×10−14 mol2dm−6 at 298 K)
1.521.521.52
12.1812.1812.18
12.4812.4812.48
1.821.821.82
