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Concentrated bases (more than 2M/L) as sodium hydroxide for example.

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Ambrose Krajcik

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Q: What substance have the highest pH (14)?
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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.


What substance has the highest ph?

an alkali


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 sum of the pH and pOH in a substance.?

The sum is 14 at room temperature.


When the pH is high the concentrations of hydrogen ions is?

pH refers to hydrogen parts the lower the hydrogen parts the more acidic a substance is the higher adversely relates to how alkaline or basic a substance is it is scaled from 1-14 i being the most acidic 14 being the most basic when the pH is high, then the concentration of Hydrogen(H+) ions is low