0
By definition a neutral solution has pH or pOH of 7, and pH + pOH= 14.
The reason for pH maxing out at 14 is easiest to explain by examining what happens at low or negative pH values. Looking at what would go on at a pH of <0 to generate a pOH of >14. It is possible to calculate solutions which meet this criteria , but do they really exist?
Any acid that yields a concentration of hydrogen ions with a molarity greater than 1 will be calculated to have a negative pH. Any glass pH electrodes dipped in such a solution would exhibit 'acid error' which causes them to measure a higher pH than the real pH.
Another technical problem is that strong acids do not fully dissociate at high concentrations. Using HCl as an example some of the hydrogen would remain bound to the chlorine so the true pH would be higher than the calculated pH
Even the definition of how we calculate pH starts to fall apart. Normally pH isis calculated as -log [H+] (negative of the logarithm of the hydrogen ion molarity). This would have to be corrected to be pH = - log aH+ (negative pf the logarithm of the hydrogen ion activity) for reasons that dont need to be covered here.
What else can I help you with?
Max value of pH for any solution is?
The maximum value for pH is 14, which corresponds to a highly basic solution. This is because pH measures the concentration of hydrogen ions in a solution on a scale from 0 to 14, with values above 7 indicating alkalinity.
What has the highest concentration of hydroxide ion?
The highest pH on the scale is 14. But pH over 14 is also possible: for example a sample of 1o M sodium hydroxide solution has a pH of 15.
How can th pH of a solution be calculated if the pOH is known?
We can subtract pOH from 14, using the formula pH + pOH = 14. This is only true at 14 degrees Celsius.
What number is highest on the pH scale?
The highest number on the pH scale is 14. The pH scale goes from 0 to 14.
Human pH level of 16?
pH or (pOH) only ranges from 0-14.It measures the amount of hydronium or hydroxide ions (respectively).The range of pH was determined from the neutral state of water which has 10-7 mol of Hydronium and 10-7 mol of Hydroxide.Respectively, there are the H+ and OH- levels.Then, they were just added up.The lower it is on pH, the more acidic.The higher it is on pH, the more basic.The opposite occurs with the pOH.
What is the pH of maximum alkalinity?
14
What is the pH range of solutions which are alkalis?
Alkalines, or bases, have a pH greater than 7 (maximum is 14).
What would be the pH of a basic solution?
The pH of a basic solution is greater than 7. Basic solutions have a pH between 7.1 and 14. A pH value above 7 indicates a solution is basic or alkaline.
Max value of pH for any solution is?
The maximum value for pH is 14, which corresponds to a highly basic solution. This is because pH measures the concentration of hydrogen ions in a solution on a scale from 0 to 14, with values above 7 indicating alkalinity.
The strongest base would have a pH of?
Practically pH of 14 or 15 is the highest base value reachable, due to limits of max. concentration.
What are true about the pH scale the scale ranges from 1 to 15 true or false?
False. The pH scale ranges from 0 to 14. A pH of 7 is neutral, with values below 7 being acidic and above 7 being alkaline.
Why the pH lies between 0 to 14 not 15?
This is only a convention.
Strongest base a pH can have?
Practically pH of 14 or 15 is the highest base value reachable, due to limits of max. concentration.
What has the highest concentration of hydroxide ion?
The highest pH on the scale is 14. But pH over 14 is also possible: for example a sample of 1o M sodium hydroxide solution has a pH of 15.
What is the range for pH in chemistry?
Technically, the pH range is 0 to 14. 0 to 7 is acidic, 7 is neutral, and 7 to 14 is basic. However, in very rare situations, an acid can have a pH of -1 and a base can have a pH of 15. But I doubt you need to know that.
What is the highest number a PH can be?
The answer to this question is 14 (I believe!). This is the PH Scale: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 All these All these numbers from numbers from 7 - 14 are alkalis. 1 - 7 are acids. The middle of the PH Scale is 7; what we call Neutral (this is because it is neither Acid or Alkalis). I hope this answer helps you.
Why can a pH of 15 not be there?
In theory any pH is possible, especially at elevated temperatures where pure water decreases in pH because of increased ionisation (but it is still neutral, neither acidic nor alkaline). However, does anything dissolve at sufficiently high concentration, and ionise sufficiently at that concentration, to achieve any given pH? In practice there are limitations. At pH 15, hydrogen ion concentration is 10^-15. That makes hydroxide ion concentration 10^1 - 10M sodium hydroxide in theory would have a pH of 15.
