3 posts • Page 1 of 1
Generally, salts that contain cations from groups 1 and 2 (e.g. NaCl) do not affect pH because these cations are weak lewis acids. Additionally, acidic salts (e.g. NH4Cl) will lower the pH of a solution because of the acid (NH4+ of NH4Cl) reacting with water to form H3O+, but the anion (the halogen Cl- in NH4Cl) will not affect the pH. This same reasoning goes for basic salts (e.g. the base CH3CO2- in NaCH3CO2 will mix with water to form OH- to raise the pH but the cation Na+ of this molecule will not affect pH).
Who is online
Users browsing this forum: No registered users and 1 guest