At 60 ∘C60\text{ }^\circ\text{C}60 ∘C the ionic product of water, Kw=9.61×10−14 mol2 dm−6K_w = 9.61 \times 10^{-14} \text{ mol}^2 \text{ dm}^{-6}Kw=9.61×10−14 mol2 dm−6.
Give the expression for KwK_wKw.
Calculate the pH of pure water at 60 ∘C60\text{ }^\circ\text{C}60 ∘C. Give your answer to 2 decimal places.
35.0 cm335.0\text{ cm}^335.0 cm3 of a 0.150 mol dm−30.150\text{ mol dm}^{-3}0.150 mol dm−3 aqueous solution of sodium hydroxide are mixed with 45.0 cm345.0\text{ cm}^345.0 cm3 of a 0.100 mol dm−30.100\text{ mol dm}^{-3}0.100 mol dm−3 solution of hydrochloric acid. The temperature of the resulting solution is maintained at 60 ∘C60\text{ }^\circ\text{C}60 ∘C.
Calculate the pH of the mixture. Give your answer to 2 decimal places.
