Value of pH

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Riya Sood 4G
Posts: 160
Joined: Sat Aug 24, 2019 12:18 am

Value of pH

Postby Riya Sood 4G » Thu Nov 28, 2019 2:54 pm

Can the value of pH every be negative ?

kim 2I
Posts: 105
Joined: Thu Jul 25, 2019 12:17 am

Re: Value of pH

Postby kim 2I » Thu Nov 28, 2019 3:09 pm

Yes. It is possible to have a negative pH. In fact, it is possible to go beyond the known 0 to 14 pH scale.

805307623
Posts: 99
Joined: Fri Aug 09, 2019 12:17 am

Re: Value of pH

Postby 805307623 » Fri Nov 29, 2019 2:29 pm

It's definitely possible to find a negative pH value. Many acids with a concentration of hydrogen ions greater than a molarity of 1 will be calculated to have a negative pH.

Callum Guo 1H
Posts: 134
Joined: Fri Aug 02, 2019 12:15 am
Been upvoted: 1 time

Re: Value of pH

Postby Callum Guo 1H » Fri Nov 29, 2019 2:36 pm

yes it could go below negative. The way you calculate ph is -log[h+]

Tyler Angtuaco 1G
Posts: 130
Joined: Wed Sep 11, 2019 12:16 am

Re: Value of pH

Postby Tyler Angtuaco 1G » Fri Nov 29, 2019 3:03 pm

It can be, such as when the concentration of hydronium is greater than one, but is uncommon.

Verity Lai 2K
Posts: 100
Joined: Sat Aug 24, 2019 12:18 am

Re: Value of pH

Postby Verity Lai 2K » Sat Nov 30, 2019 4:07 pm

Yeah the pH can be negative and it can go past 14 but I don't think we need to worry about anything but what's between 1-14 for this class.

Louise Lin 2B
Posts: 97
Joined: Sat Aug 17, 2019 12:15 am

Re: Value of pH

Postby Louise Lin 2B » Sat Nov 30, 2019 4:23 pm

It's possible to calculate a negative pH, but in practice in a lab, negative pH can't really be tested for.

405398682
Posts: 26
Joined: Wed Sep 18, 2019 12:21 am

Re: Value of pH

Postby 405398682 » Sun Dec 01, 2019 3:01 pm

Yes, pH value can go below 0 and go above 14, but I think the negative pH is not our class focus.

Aarushi Solanki 4F
Posts: 107
Joined: Sat Jul 20, 2019 12:17 am

Re: Value of pH

Postby Aarushi Solanki 4F » Sun Dec 01, 2019 3:03 pm

Yes, this is possible when the H+ concentration is greater than 1.


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