Because of the logarithmic nature of the pH scale, a single step indicates a difference tenfold. As such, the difference in concentration of hydrogen ions between solutions A and B in this example are a hundred fold, with solution A having a higher concentration than solution B.
Actually pH is the negative log of the concentration of H+ ions. a neutrl liquid water has same H+ and OH- concentration which equal (10^-7) an pH = 9 solution has hundred fold less H+ ions than a solution which has pH = 7 an pH = 9 solution has hundred fold more OH- ions than a solution which has pH = 7
100 times more.
I had to mentally supply some missing words in your question. If I got them right, the answer above is correct.
A ph of seven on the ph scale is higher in acidity than the neutral 7 on the ph scale.
Potential of hydrogen or PH
False.
Concentration of hydrogen ions in the solution
An acid increase the hydrogen ion concentration in a solution.
Acid solutions contain higher concentrations of hydrogen ions (hydronium ions).
Concentration of hydrogen ions in a solution is called: Acid concentration and pH = - log10(hydrogen ions concentration, in mol/l)
< 7
Potential of hydrogen or PH
A buffer.
False.
Concentration of hydrogen ions in the solution
An acid increase the hydrogen ion concentration in a solution.
Adding water dilutes the solution and therefore reduces the concentration of hydrogen ions.
A measure of the concentration of hydrogen ions in solutions is the pH. Solutions with more hydrogen ions are acids, and substances with less hydrogen ions are bases. Furthermore, each number descending has ten times the amount of hydrogen ions of the previous number (ie a solution with a pH of 5 has 1,000 more hydrogen ions than a solution with a pH of 8).
Acid solutions contain higher concentrations of hydrogen ions (hydronium ions).
pH is used as a measurement of the concentration of hydrogen ions in a solution. pH is the negative logarithm of the hydrogen ion concentration.
The pH scale is a measurement system that indicates the concentration of Hydrogen ions also called Protons.