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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.
What else can I help you with?
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
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 does it mean when a substance has a low pH?
When a substance has a low pH, it means that it is acidic. pH is a measure of how acidic or basic a substance is on a scale of 0 to 14, with lower numbers indicating higher acidity.
What pH colour is lemon juice?
Lemon juice is acidic with a pH around 2.0-2.5, which is typically indicated by a yellow color on pH test strips or scales.
Using the pH scale what numbers indicate an acid What numbers indicate a base?
pH numbers below 7 indicate an acid, with lower numbers indicating stronger acids. pH numbers above 7 indicate a base, with higher numbers indicating stronger bases.
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 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 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 colour is copper sulphate on pH scale?
Copper sulfate appears blue in color on the pH scale.
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
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 does it mean when a substance has a low pH?
When a substance has a low pH, it means that it is acidic. pH is a measure of how acidic or basic a substance is on a scale of 0 to 14, with lower numbers indicating higher acidity.
What pH colour is lemon juice?
Lemon juice is acidic with a pH around 2.0-2.5, which is typically indicated by a yellow color on pH test strips or scales.
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.
Using the pH scale what numbers indicate an acid What numbers indicate a base?
pH numbers below 7 indicate an acid, with lower numbers indicating stronger acids. pH numbers above 7 indicate a base, with higher numbers indicating stronger bases.
What are the pH numbers?
pH values are indications of acidity/alkalinity of a solution.
