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Phosphorus
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What are intervals of pH?
There are no intervals in pH: it is a continuous property, like concentrationbut it has practical limits of about -1 < pH < 15
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.
Why pH meter is till 14 Not 15 or more?
pH can most definitely go above 14. pH stands for negative logarithm of Hydrogen concetration and of course a solution could surpass 14Ph....
Why does the pH scale ordinarily run from 0 to 14 is it possible for the scale to extent beyond 0 and 14if so how?
The pH scale is the negative of the logarithm of the hydrogen ion concentration (molarity) in a solution. Thus at pH 1 there are 1x 10-1 mol/liter of H+ present and at pH 14 there are 1x10-14 mole/liter present (much less) Obviously you could have 1x10-15 mol/liter present for a pH of 15 or even a fraction of of a mole to give a pH of less than 1 (pH 0.698 = 0,2 mole/liter.) At pH 0 the concentration would be 10 mol/liter Now what happens at lower than zero pH. Any acid that has a concentration of hydrogen ions with a molarity greater than 1 can be calculated to have a negative pH. The pH of 12M HCl would be -log(12) = -1.08. The proof of the concentration and pH would be physically difficult as the pH probes don't work well in this range (acid error).
What solutions is the weakest acid pH of 2.4 pH of 5.2 pH of 6.4 pH of 8.6 or pH of 10.1?
pH=6,4
What is pH soap?
15 pH
What are true about the pH scale the scale ranges from 1 to 15 true or false?
pH scale is from 1 to 14 (not 15)
What are intervals of pH?
There are no intervals in pH: it is a continuous property, like concentrationbut it has practical limits of about -1 < pH < 15
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.
How do you get pKa with the pH of a solution?
pKa= pH - log(A/HA) to clarify -log is subtract log E.g A buffer is prepared by adding .15 M of NaOH and .1 of a weak acid, HA. If the pH of the buffer is 8.15, what is the pKa of the acid? pH= 8.15 - log .15/.1 = 7.97
Is ethanol acidic?
Ethanol is basic, ph=15 (I think)
Strongest base a pH can have?
Practically pH of 14 or 15 is the highest base value reachable, due to limits of max. concentration.
Why the pH lies between 0 to 14 not 15?
This is only a convention.
What is the pH balance of dissolved aspirin?
there is no logical reason to believe that "acetylsalicyclic acid" would have a pH of 15...this would be a base.
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 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.
Why pH meter is till 14 Not 15 or more?
pH can most definitely go above 14. pH stands for negative logarithm of Hydrogen concetration and of course a solution could surpass 14Ph....
