pH range

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pH range

Postby Brian_Ho_2B » Mon Jan 13, 2020 4:08 pm

Is it possible for a pH level to go under 0 or above 14? Is it possible for hydronium concentrations to be above 1M (for pH less than 0) or hydroxide concentrations more than 1M (for pH greater than 14)?

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Re: pH range

Postby McKenna_4A » Mon Jan 13, 2020 4:08 pm

Yes, however it is very uncommon

Fiona Latifi 1A
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Re: pH range

Postby Fiona Latifi 1A » Mon Jan 13, 2020 7:23 pm

Yes, if a solution is VERY acidic or VERY basic.

Sebastian Lee 1L
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Re: pH range

Postby Sebastian Lee 1L » Mon Jan 13, 2020 7:51 pm

Yes, it is indeed possible to have pH outside of the range from 0 to 14. For example, if you had a solution of 10M HCl (a strong acid), you would find the pH = -log(H+) to be -1. Of course, this would be a tremendously strong acid solution. Likewise for very strong bases, if you had a solution of 10M NaOH (a strong base) you'd find the pOH = -log(OH-) to be -1 and thus the pH to be 15.

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Re: pH range

Postby Alondra » Sun Jan 19, 2020 6:42 pm

Yes, the range is 0-14. This is rare but it shows that it is either a very strong acid/base.

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