Negative pH of acid

[George Cazares 1E]

Can an acid have a negative pH?

[Aaron Akhavan-Dis1B]

According to Dr. Lavelle, the range of molarity when calculating pH is 1.0M to 10^-14M. If you plug those both into the pH equation. We get a pH range of 0-14. If our molarity was allowed to more than 1 I guess a negative pH does exist. I just don't know how you would verify with like litmus paper or something.

[Ava Nickman]

I don't believe the pH can drop below 0 given that the scale is 0-14.

[emilyyribarren1k]

I think for the purpose of this class it's safe to assume that the lowest a pH can be is 0.

[AJForte-2C]

I think that there technically an acid can have a negative pH, but I dont think it will be addressed in this class.

[Ximeng Guo 2K]

I think there can be acids of negative pH

[StephanieGrigorian2J]

A negative pH is possible as a very strong acid can go below 0, but for the purposes of the class I'm assuming the scale is going to be from 0-14.

[Gabe_Ek 1G]

I believe it is possible for a very strong acid to have a negative pH based on the logarithmic pH scale of the concentration of hydronium ions. But I think for this class it is going to be addressed within the 0-14 scale.

[Keshav Patel 14B 2B]

There is no negative PH. It can only range to the scale of 0-14.

[Ansh Patel 2I]

Hi! I think it is possible for an acid to have a negative pH, but for the purposes of this class I don't think we have to deal with such an acid.

[Yichen Fan 3A]

It is possible if the molarity of hydrogen ion is greater than 1. If you have 5M HCl solution, -log(5)=-0.7

[Ashley Kim 3H]

Acids cannot have a negative pH; the pH scale ranges from 0-14.

[derickngo3d]

pH goes from 0-14.

[Aayushi Jani 3A]

I think that the pH scale goes from 0-14 (as it is found by finding -log[H+]). In order for the pH to be negative, the concentration of H+ would have to be greater than 1M.

[Becca Nelson 3F]

Yes. If for example there was a strong acid with a molarity greater than 1M, it would have a pH less than 0. In the same way, if a strong base had a molarity greater than 1M it could have a pH greater than14. For chem 14A, I believe it is not important that we know this.

[Nhu Pham-Dis3G]

No because the pH scale only ranges fro 0-14.

[CesarLec1]

pH can exceed the 0 to 14 but as Lavelle mentioned, we wont have to worry about it since we mostly deal with the concepts of this class and not so much the equilibrium equations so we do not have to worry about it.