They represent the acidity/basicity of a substance. A number below 7 represents an acid, and a number above 7 represents a base. The numbers also represents the number of hydroxide or hydronium ions an acid or base has. They're basically what make acids and bases what they are.
A pH scale ranges from 0-7. 0 to <7, the pH is acidic. At 7, it is neutral. 7 to <14, it is basic
pH and pOH are both logarithmic scales measuring the acidity (or basicness) of a solution. pH is based on the amount of H+ (hydrogen ions), and pOH is based on the amount of OH- (hydroxide ions) in the solution. You can calculate pH if you know the H+ activity: pH = - log10 (H+) pOH is calculated the same way, except with OH- instead of the H+ ions. pOH is also equal to 14 - pH. This is because the pH and pOH scales go from 0 to 14. A solution that is very acidic will have a low pH number and a high pOH number. Conversely, a very basic solution will have a low pOH and a high pH. Water is a neutral solution and has a pH and pOH of 7, which is in the middle.
Using the pH Scales, if I have 2 Acids, one with the pH of 2 and another with the pH of 5.8, the Acid with A pH of 2 is stronger. 7 in the pH scale means Nuetral, and 14 means very strong Alkaline.
There is no particular symbol for acids. Different acids have different formulae. But sometimes to show that a reaction is taking place in acidic medium, the sign of H+ is used because all acids give H+ ion.
A pH greater than 7 is alkali (basic).
if you mean on the pH scale they are found from numbers 0-7
pH is a logarithmic scale, so a change of 1 in pH means a change of 10 in the quantity. It is also negative, so as pH increases the measured quantity actuallly goes down. The temperature scales are simply direct scales; all changes mean the same thing and going up means going up.
pH is a logarithmic scale, so a change of 1 in pH means a change of 10 in the quantity. It is also negative, so as pH increases the measured quantity actuallly goes down. The temperature scales are simply direct scales; all changes mean the same thing and going up means going up.
it is lite green on the scales of PH
How acidic or basic the water is. You want it in the middle of these two. "PH" refers to the acid/base continuum. Low numbers mean higher acid concentrations, High numbers mean higher alkaline (base) numbers.
If by pH you mean the acidity of a compound then by combining equal amounts of each pH they would all "cancel each other out" i.e. neutralise which leaves a pH of 7
A pH scale ranges from 0-7. 0 to <7, the pH is acidic. At 7, it is neutral. 7 to <14, it is basic
The pH is under 1.
This pH is near 14.
pH and pOH are both logarithmic scales measuring the acidity (or basicness) of a solution. pH is based on the amount of H+ (hydrogen ions), and pOH is based on the amount of OH- (hydroxide ions) in the solution. You can calculate pH if you know the H+ activity: pH = - log10 (H+) pOH is calculated the same way, except with OH- instead of the H+ ions. pOH is also equal to 14 - pH. This is because the pH and pOH scales go from 0 to 14. A solution that is very acidic will have a low pH number and a high pOH number. Conversely, a very basic solution will have a low pOH and a high pH. Water is a neutral solution and has a pH and pOH of 7, which is in the middle.
pH values are indications of acidity/alkalinity of a solution.
Neutrality is a pH=7,00.