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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/l

Note: [H3O+] = concentration of hydronium ions (mol/l),

which is the same as (or equivalent with) saying H+ ions concentration in water

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14y ago
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11y ago

Since [H3O+] can be expressed as [H+]...the answer to your question is-----> [H+]=10^-pH....

which is 4.6x10^-3M

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Q: What is the H3O concentration in a solution with a pH of 2.34?
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What formula can you use to calculate the H3O plus?

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).


What expression represents the pH of a solution?

Concentration of hydrogen ions in the solution


What is the H3O plus concentration in a solution that is 100 times less acidic than one having a pH of 3.22?

The H3O+ concentration in a solution with pH 3.22 = 1x10^-3.22 M or 6.03x10^-4 M.If a solution is 100 times less acidic, then the H3O+ concentration will be 6.03x10^-6 M.Put another way, 100 times less acidic will have a pH of 5.22 and H3O+ = 1x10^-5.22 = 6.03x10^-6M


What is the pH of a naturall solution?

The pH of a neutral solution is 7 and the concentration of H+ or H3O+ in the solution would be 1.0 X 10-7.


The following are pH values cola 2 orange juice 3 beer 4 coffee 5 human blood 7.4 Which of these liquids has the highest molar concentration of OH?

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.


What is the difference between an acid and a base and something that is neutral?

The difference between the three is the relative concentration of H3O+ and OH- in the solution.An acid solution has a higher concentration of H3O+ than OH- and its pH is lower than 7.A basic solution has a higher concentration of OH- than H3O+ and its pH is higher than 7.A neutral solution has exactly equal concentration of each one and its pH is exactly 7.


The ph of lemon juice at 298 k is found to be 2.32 what is the concentration oh H3O plus ions in the solution?

If the PH of lemon juice at 298 k is found to be 2.32, the concentration of H3O plus ions in the solution would be 0.5 M.


What dos the pH scale actually measure?

pH is a measure of the acidity of the solution. It describes the concentration of H+ or H3O+ ions in a solution. pH= -log10[H+]. Therefore, the lower the pH, the higher the concentration of hydrogen atoms and the more acidic the solution.


What happens when the pH is 2?

In the first hand it means it is a fairly strong acid.In a more accurate meaning, the pH is calculated as:-log10 [H3O+]Where [H3O+] means the concentration of hydroxide-ions in the water.So, we know this:-log10 [H3O+] = 2.00So, it is not hard to calculate that the concentration of hydroxide ions is 0,01 g mol-1 .


What is the pH of a solution with H3O plus equals 1 x 10-9M?

pH = -log(hydronium concentration) [Hydronium is H3O.-log(1 x 10-9) = 9


How many more H plus ions does a solution with a pH of 4 than a solution with a pH of 5?

It has 10 times as many. pH is roughly the same as "log [H3O+]". This means "10 to what power is equal to the concentration of H3O+ ions?" So, if you go from pH 5 to pH 4, you've got a concentration of ten times fewer H3O+ ions, and ten times more H+ ions.


What is the pH neutral solution?

When a pH level is 7.0, it is defined as 'neutral' at 25°C because at this pH the concentration of H3O+ equals the concentration of OH− in pure water. - Wikipedia