Effect of pH

[Xuan Kuang 2L]

Hello there, not sure if anyone asked this already, but could someone explain to me how we know that Group I/II and some of the halogens (Cl-, Br-. I-) have no effect on the pH when it dissociates in water?

[ryanhon2H]

This was in Chem14A, where some anions or cations are basic/acidic when dissociating in water so they can affect the pH. On page 478 in the 7th edition textbook there are a couple of tables that say which ions affect pH.

[Fanny Lee 2K]

If I remember correctly Dr. Lavelle noted that the group II elements would affect the pH slightly but not significant enough so that the pH is affected. Keep in mind that sometimes the textbook would write equations using the double arrows for the 2+ cation.