Relation between pH value and H ions?

Answer 1

In chemistry, a lower case p means 'the negative log of-'. This means that pH is the negative log of the concentration of H+ in a solution. To put it in terms of math:

pH = -log[H+]

Answer 2

pH = -log10[H+] (pH is the minus log of the hydrogen ion concentration) A low pH value means lots of H+ eg in sulphuric acid, pH 2 or 3. A high pH means less H+ eg if the solution is alkaline, pH 13-14. On your calculator, it's easy to get from H+ to pH. To get from pH to H+ you need to either do 10-pH or do shift log (minus number). Practice a few to make sure you can get the sequence right on your calculator : pH 7 (neutral) should come out as 1 x 10-7 hydrogen ions.

Answer 3

You can use pH, OH-, and H+ to calculate each other. If you take the -log10 of [H+], you can get the pH. If you take 10^(-pH), you can get the [H+]. You can get the OH- concentration by dividing the Kw(the self-ionization constant of H2O, 1E-14) by the H+ concentration. By taking the -log10 of [OH-], you can calculate the pOH and to get the pH, you subtract the pOH from 14. (You get 14 by taking the -log10 of the Kw.)

Answer 4

pH value is a measure of the acidity or alkalinity of a solution. It is defined as the negative logarithm of the concentration of hydrogen ions in the solution. A lower pH value indicates higher concentration of H ions, making the solution more acidic. Conversely, a higher pH value indicates lower concentration of H ions, making the solution more alkaline.

Answer 5

In chemistry, a lower case p means 'the negative log of-'. This means that pH is the negative log of the concentration of H+ in a solution. To put it in terms of math:

pH = -log[H+]

Answer 6

the more hydrated hydrogen ions, the lower the pH value of the solution.