The pure water has the pH=7; the concentrations of OH- and H3O + are equivalent.
pH = -log[H3O+]
The concentration of H3O in the cola will be 0.002 grams per liter.
pH = (by definition) = -log10[H3O+] , no matter what kind of acid,This inverted to:[H3O+] = 10-pH = becomes 10-2.9 = 1.3*10-3 mol/lNote: [H3O+] = concentration of hydronium ions (mol/l),which is the same as (or equivalent with) saying H+ ions concentration in water
Depending on its concentration you can calculate it by this formula: pH = -log[H3O+]
The highest pH value in a group of such values indicates that the greatest concentration of hydroxide ions is present in the substance with the highest pH. This is true because a higher pH indicates a lower concentration of hydrogen ions, and the product of the molar concentrations of hydrogen and hydroxide ions must always be 10-14 at standard temperature and pressure in a mixture that is mostly water.
The pH is a measure of the concentration of H3O+ in a solution. The lower the pH, the higher the concentration of H3O+. This is because of the way it is defined:pH = - log10 [H3O+]or in other words, the pH is the negative logarithm (in base 10) of the concentration of H3O+.Water, and water-based solutions have a special property: if you multiply the concentration of H3O+ and the concentration of OH-, you always get a constant number, no matter what. Mathematically, that is:[H3O+] * [OH-] = 1 x 10-14This also says the the two concentrations are inverselyproportional. So when one is high, the other has to be low.So, getting back to your question, we know the pH of each solution. From that we know the concentration of H3O+. Again, lower the pH, the higher the concentration of H3O+. And since the concentrations of H3O+ and OH- are inversely proportional, when H3O+ is high, the OH- concentration is low. So which solution has the lowest amount of H3O+? That's the one that has the highest pH, and that will also have the highest concentration of OH-.See the Related Questions for more information about pH, acids and bases.
pH = -log[H3O+]
The negative logarithm of the molar concentration of hydronium (H3O+) ions. pH=-log[H3O+]
The concentration of H3O in the cola will be 0.002 grams per liter.
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In an aqueous solution, the concentration of H3O+ is the same as the concentration of H+. If you know the pH of the solution, then that's equal to 10^(-pH).
Depending on its concentration you can calculate it by this formula: pH = -log[H3O+]
pH = -log10([H3O+]).
pH = (by definition) = -log10[H3O+] , no matter what kind of acid,This inverted to:[H3O+] = 10-pH = becomes 10-2.9 = 1.3*10-3 mol/lNote: [H3O+] = concentration of hydronium ions (mol/l),which is the same as (or equivalent with) saying H+ ions concentration in water
Hydronium is the protonated water molecule: H3O+It is found in pure water formed by autoprotolysis, at concentration of 1.0*10-7 mol/L:H2O + H2O
pH = - log [H3O+]. It is the negative logarithm of the hydronium ion concentration.
The highest pH value in a group of such values indicates that the greatest concentration of hydroxide ions is present in the substance with the highest pH. This is true because a higher pH indicates a lower concentration of hydrogen ions, and the product of the molar concentrations of hydrogen and hydroxide ions must always be 10-14 at standard temperature and pressure in a mixture that is mostly water.