The Common-Ion Effect and pH Buffers
1. Calculate the pH at 25°C of 1.00 L of abuffer that is 0.120 M HNO2 and 0.150M NaNO2 before and after the addition of 1.00mL of 12.0 M HCl.
pH Indicators and Acid–Base Titrations
2. A 25.0 mL sample of 0.100 M aceticacid is titrated with 0.125 M NaOH. Calculate the pH at25°C of the titration mixture after 10.0, 20.0, and 30.0 mL of thebase have been added.
Solubility Equilibria
3. pH of Milk of Magnesia What is the pH at25°C of a saturated solution of magnesium hydroxide (the activeingredient in the antacid milk of magnesia)?
