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The pH is a measure of how acidic or basic(alkaline) an aqueous solution is.
Pure water is neutral, with a pH = 7. Things with a pH <7 are acidic, and things with a pH >7 are basic.
The theoretical pH of an aqueous solution is defined this way:
pH = -log10 [H3O]
Related Information:
The pH approximates the negative logarithm, base 10, of the Hydronium ion (H3O+) molar concentration of an aqueous solution. It's an indicator of the relative acidity or basicity (alkalinity) of the solution.
What makes a solution acidic is the amount of H3O+ in it. A highly acidic solution will have a high concentration of H3O+, and so it will have a low pH. A basic solution has a very low concentration of H3O+, and so it has a high pH. Note that H3O+ and H+ really refer to the same thing, but H+ doesn't actually exist by itself in water: it immediately combines with an H2O molecule to form H3O+ instead.
Substances with very high, or very low, pH are dangerous to human hair, eyes, and skin.
Examples: pH of common substances are:
Stomach acid -- 1
Lemon juice -- 2.2
Pure water -- 7
Milk of magnesia -- 10.5
What else can I help you with?
What is the pH solution defined as what of the hydrogen ion concentration?
The pH is a measure of the activity of the ion H+ in a solution.
What is a measure of the H plus concentration in a solution?
pH is defined as -log[H+]. This means that if one knows the concentration of hydrogen ion in solution, the pH is simply the negative logarithm (base 10) of that. Similarly, one can find the pOH simply by substituting the concentration of OH- for the concentration of H+ in the aforementioned formula.
What does the pH of a dilution measure?
pH is a measure of the hydrogen ion (H+) activity in a solution.
How do you measure pH without a pH meter?
We can use a pH paper.
What do you measure pH?
The pH of solutions (liquids) is measured.
What is the pH solution defined as what of the hydrogen ion concentration?
The pH is a measure of the activity of the ion H+ in a solution.
What is the definition for hydrogen concentration?
The pH level is defined as the log of hydrogen ion concentration. It is a measure of acidity of a solution.
Is the pH of a solution of the concentration of H plus in the solution right?
Yes, the pH of a solution is a measure of the concentration of hydrogen ions (H+) in the solution. pH is defined as the negative logarithm of the hydrogen ion concentration.
What is the pH level of hydronium?
pH is defined by the concentration of Hydronium ions. There is no definite pH for the hydronium ion or any acid or base.
What is the definitiom of pH?
PH ( power of hydrogen ) is the abiliy of a substance to gie out hydrogen ions when dissolved in water. It is a measure of the basicity or acidity of a solution. When PH<7 it is acidic, PH>7 basic, PH=7 neutral.
How is pH related to bases?
pH is a measure of hydrogen ion concentration; a measure of the acidity or alkalinity of a solution.Aqueous solutions at 25°C with a pH less than seven are acidic, whilethose with a pH greater than seven are basic or alkaline.A pH level of 7.0 at 25°C is defined as 'neutral' because the concentration of H3O+ equals the concentration of OH− in pure water.
What is princilpe of pH?
The principle of a pH meter is that it measures the concentration of H+ ions in a solution. If the concentration of H+ ions is equal to the concentration of OH- ions, then the solution is neutral.
What is the pH of cyclohexanol?
The pH of pure cyclohexanol is not a relevant concept as pH is a measure of the hydrogen ion concentration in an aqueous solution. Since cyclohexanol is not a strong acid or base, it does not significantly ionize in water to produce hydrogen or hydroxide ions, hence it does not have a defined pH in the traditional sense.
What is the pH of a solution defined as?
The pH of a solution is a measure of the acidity or basicity of the solution. It indicates the concentration of hydrogen ions in the solution. A pH value below 7 indicates acidity, while a pH value above 7 indicates alkalinity.
What is a measure of the H plus concentration in a solution?
pH is defined as -log[H+]. This means that if one knows the concentration of hydrogen ion in solution, the pH is simply the negative logarithm (base 10) of that. Similarly, one can find the pOH simply by substituting the concentration of OH- for the concentration of H+ in the aforementioned formula.
What does the pH of a dilution measure?
pH is a measure of the hydrogen ion (H+) activity in a solution.
How do you measure pH without a pH meter?
We can use a pH paper.
