Answer Happy

Question 2 (5 points) A 1.00 L solution contains 0.125M acetic acid (CH3COOH) and 0.750M sodium acetate (CH3COONa). What is the pH of the solution after 0.10 moles of NaOH are added to the solution? The Ka for acetic acid is 1.76 x 10-5? Need to show your calculations including ICE tables for full marks.

Question 3 (4 points) Find the pH of a 0.1 M solution of nitrous acid (HNO₂). The K₂ for nitrous acid is 7.1 x 10-4. To achieve full marks, your answer needs to show all steps including an ICE table, the use of the hundreds rule, an expression equation for K, and the calculation of pH and/or pOH.