Calculate the pH of a solution made by dissolving the 0.123 g of ammonium chloride in sufficient water to make 500 mL of solution; Ka= 5.70 × 10-10.
Determine the pH resulting from the addition of 0.0500 m moles of sodium hydroxide to a 500 mL solution, which is having the 0.050 M acetic acid and the 0.050 M sodium acetate; Ka= 1.8 × 10-5.