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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.

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Q: What do the numbers on the pH scales mean?
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Related questions

Where are fluids with an acid pH found?

if you mean on the pH scale they are found from numbers 0-7


How is the pH scale different from other scales of measurement like the Fahrenheit temperature scale?

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.


How is pH scale different from other scales of measurement like the Fahrenheit temperature scale?

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.


What colour is copper sulphate on pH scale?

it is lite green on the scales of PH


What does PH mean is pool terms?

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.


What do all pH numbers form?

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


What are the levels of Ph scales?

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


What are the pH numbers of a strong acid?

The pH is under 1.


What are the pH numbers of a strong base?

This pH is near 14.


PH is a measure of?

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.


What are the pH numbers?

pH values are indications of acidity/alkalinity of a solution.


What numbers on pH scale represents neutral?

Neutrality is a pH=7,00.