The temperature for each solution is carried out at approxim

The temperature for each solution is carried out at approximately 297 K where 4-1 .00 x 10-14 pH is a logarithmic scale used to indicate the hydrogen ion concentration, H. of a solution: PartA pH-log H Due to the autoionization of water, in any aqueous solution, the hydrogen ion concentration and the hydroxide ion concentration, [OH, are related to each other by the Kw of water 0.50 g of hydrogen chionde (HCI) is dissolved in water to make 6.5 L of solution. What is the pH ot the resulting hydrochloric acid solution? Express the pH numerically to two decimal places. View Available Hint(s) K,-[H+][OH-] = 1.00 × 10-14 where 1.00 × 10-14 is the value at approximately 297 K. Based on this relation, the pH and pOH are also related to each other as 14.00-pH+pOH PH Submit Part B 0.50 g of sodium hydroxide (NaOH) pellets are dissolved in water to make 8.0 L of solution. What is the pH of this solution? Express the pH numerically to two decimal places View Available Hint(s) pH- Submit

Solution

pH = -log[H+]

concentration of HCl solution = 0.5/36.5*1/6.5

Concentration of HCl solution = 0.00211

pH = -log(0.00211)

pH = 2.6757

pOH = -log[OH-]

concentration of NaOH solution = 0.5/40*1/8

Concentration of NaOH solution = 0.001563

pOH = -log(0.001563)

pOH = 2.806

pH = 14 - pOH

pH = 14 - 2.806

pH = 11.194