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If you are using a litmus test, then the blue or purplish color indicates that the pH is above 8.3. However, if you use the universal indicator test, purple means a ph of 11-14, which is indicative of a strong base. pH stands for portenz(concentration) of hydroxide (OH-) ions. Acidity is caused by excess free protons, or Hydrogen (H+), but the logarithmic scale measures concentration or hyroxide (OH-), with 0-3 being highly acidic, and 11-14 being highly basic. Acidity of solutions is measured on a logarithmic scale from 0-14, with 7 being neutral, or pure water. 7->6 or 6->5 is 10 times more acidic and 7->8 or 8->9is 10 times more basic.
What else can I help you with?
What colour is tooth paste on the pH scale?
Toothpaste typically falls within the neutral range on the pH scale, around 7. The color of toothpaste does not directly correlate with its pH level, as pH is a measure of acidity or basicity, not color.
What number on the pH scale is the most acidic?
A pH of 0 is the most acidic on the pH scale.
Can you tell if something is acidic on the pH scale?
The pH scale ranges from acids to alkali's. The strongest acid is red then it gets lighter, (orange, pale, yellow) then it goes to green (neutral) and alkali's are more dark greenish purple colours. Hope this helped. :)
Metacresol purple is an indicator that changes from yellow to purple at pH 8.2. what is Ka for this indicator and it's pH range and color of the solution with pH 9.0 and few drops of Metacresol purple?
The Ka for metacresol purple is not readily available. The pH range for this indicator is typically around 7.2 to 9.8 where the color transition occurs. At pH 9.0, metacresol purple would likely be predominantly purple, indicating a higher pH level.
Are there decimals in the pH scale?
Yes. For example the pH of blood is maintained between 7.35 to 7.45.
What colour is Kitchen cleaner in the pH scale?
10
What pH does purple show?
A purple solution in universal indicator indicates an alkaline solution with a pH of 14
What does the number seven mean on a pH scale?
it is neutral. Water is a 7 on the pH scale
What Does high pH mean on a pH scale?
A pH over 7 is basic.
What base mean in science on the pH scale?
A soluble base is an alkali, so above 7 on the pH scale.
What two term determines the pH scale?
the pH scale is a measurement of acidity of liquids. it ranges from a rating on 1 to 14. when it is at 1, it is very acidic and at 14 it is a strong alkali but at 7, its neutral like water. the pH scale also shows acidity by colour- at 1 it is a strong red, at 7 it is a green and at 14, it is a purple. ;)
Is 6 a natural number?
The number 6 is not a natural number on the pH scale if that is what you mean. In fact the number 7 is a natural and neutral number on the pH scale ( on the pH scale number 7 is a green colour.)
What do mean pH scale?
The pH scale is from 0 to 14; pH is a measure of acidity/alkalinity of a solution.pH= 7 is neutral; under 7 is acidic, over 7 is alkaline.
What colour is tooth paste on the pH scale?
Toothpaste typically falls within the neutral range on the pH scale, around 7. The color of toothpaste does not directly correlate with its pH level, as pH is a measure of acidity or basicity, not color.
What scale is used to determine pH?
the pH scale
What scale describes the acidity of a solution as a number?
the pH
What number is highest on the pH scale?
The highest number on the pH scale is 14. The pH scale goes from 0 to 14.
