weak acid/base and pH

[bellaha4F]

So in general a weak base will raise the pH and a weak acid will lower the pH, right?

[Isabel Day 1D]

Yes, because acids have pH less than 7 and bases have pH greater than 7.

[505306205]

A weak base will not raise the pH as much as a strong base would and that also goes for weak acids as they are incompletely protonated/deprotonized.

[Emilie_Paltrinieri_1K]

So in general a weak base will raise the pH and a weak acid will lower the pH, right?
Yes, remember that acidic solutions have lower pH (so on the left side of the scale), while more basic solutions have higher pH (right side of the scale).

[Ryan_Kien_1L]

Yes, the same applies for strong acids/bases as well.

[Veeda Khan 2E]

Yes, but the stronger the acid/base, the more significant the change will be.

[Libby Dillon - 1A]

Yes, an acid (strong or weak) will lower the pH of a solution while a base (strong or weak) will raise the pH of a solution. Remember a pH of 7 is neutral, 0 is the most acidic, and 14 is the most basic.

[isha dis3d]

If the salt has the anion of a weak acid, it will make the solution basic. If the salt has a cation of a weak base, it will make the solution acidic.

[505612629]

As those above have stated, yes. The stronger the acid(towards 0)/base(towards 14) the greater the impact.

[Shruti Kulkarni 2I]

Yep! This happens cuz weak acids have pH's lower than 7 and weak bases have pH's over 7, so they usually will be lowering or raising the pH.