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pH means -log[H], [H] is the concentration of hydrogen ion. and the concentration of hydrogen ion (also know as proton) is depend on the concentration of acid solution. the higher the proton concentration, the solution is more acidic, pH value lower. a "solid" acid will not change the colour of "dry litmus paper", because the is no water present, no hydrogen ion are present.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agopH is an other way of expressing (low) concentration values:
It is (by definition) the negative power of 10 which equals the concentration of protons [H+] ( in mol/L) in water:
In formula:
pH = - log10[H+]Examle:[H+] = 1.0*10-3 >> pH = 3.00
[H+] = 3.0*10-5 = 10-4.5 >> pH = 4.50
[H+] = 2.0*10-10 = 10-9.7 >> pH = 9.70
Wiki User
∙ 10y agopH= -log10[H+], pOH = -log10[OH-] and pOH + pH = 14
So the concentation of acid (H+) and base (OH-) will affect the pH.
Strictly speaking it is activity not concentration that matters.
Wiki User
∙ 15y agopH is a measure of the concentration of free protons in a solution (or in the case of aqueous solutions, hydronium ions).
Wiki User
∙ 9y agoYes, concentration does affect the PH of a given substance. It is important to note that the PH depends on the concentration of the H+ ions in a solution.
Wiki User
∙ 13y agothe higher the concentration of acid or H+, the lower the pH
the higher the concentration of base or OH-, the higher the pH
Wiki User
∙ 11y agoIt depends on H+ concentration pH= -log[H+]
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What does the PH solution of a acid and base depend on?
the H+ concentration and the OH- concentration
PH value of hydrofloric acid?
pH values depend on the concentration of acidsolutionfor eg.0.02 M HF has pH=2.47
What is the pH for sodium bicarbonate?
Sodium bicarbonate, NaHCO3 is alkaline so the pH will be greater than 7. However, the actual pH will depend on the concentration of the NaHCO3 solution.
What is the pH of the compound H3PO4?
The pH of any substance depends upon its concentration in the solution. But in general orthophosohoric acid is a weak acid and hence has higher pH than acids like Nitric acid, sulphuric acid at the same temp. and concentration.
What is the pH of HNO3?
HNO3 is nitric acid. De[emdimng on its level of concentration it can vary from '0' (very concentrated ; 16M) to '3'. ) low concentration (dilute ' say 0.6 M).
What is the pH of aluminum hydroxide?
The pH will depend on the concentration and solubility (temperature). It will be >7
What does the PH solution of a acid and base depend on?
the H+ concentration and the OH- concentration
What does the pH if a solution depend on?
the concentration of OH ions in solutions
Is a pH element or compound?
Neither - its a measure of hydrogen ion concentration.
Sodium hydroxide in water has a pH of?
The pH is greater than 7, but beyond that the specific pH will depend on the concentration.
Does boiling point depend upon concentration?
The boiling point of a compound is independent from the concentration.
What should be pH -value to be strong acid?
The pH will depend on the concentration of the acid, not on whether it is strong or weak.
What should be pH value to be strong acid?
The pH will depend on the concentration of the acid, not on whether it is strong or weak.
PH value of hydrofloric acid?
pH values depend on the concentration of acidsolutionfor eg.0.02 M HF has pH=2.47
What is the pH value of aluminium chloride?
depends on the molarity, but it is usually pH 5.5.
What is the pH for sodium bicarbonate?
Sodium bicarbonate, NaHCO3 is alkaline so the pH will be greater than 7. However, the actual pH will depend on the concentration of the NaHCO3 solution.
What is the pH of the compound H3PO4?
The pH of any substance depends upon its concentration in the solution. But in general orthophosohoric acid is a weak acid and hence has higher pH than acids like Nitric acid, sulphuric acid at the same temp. and concentration.
