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pH is the negative logarithm, to the base ten, of the concentration of hydronium ions; in simple math terms, -log10[H3O+]. Another way to read this is that the concentration of hydronium is 10 to the power of pH, 10pH. It gives an indication of how many hydronium (and therefore hydrogen) ions are dissolved in the solution concerned; a larger number means less of it and vice versa.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoThe pH scale is made up of 3 parts:
- Acidic
- Basic
- Neutral
These 3 parts are represented on the scale in different points. The scale is like this:
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
A substance with pH between 1-7 is Acidic and on a universal indicator it comes up as the colour red or yellow.
7 is Neutral. A neutral is a substance like water it is neither acid or alkaline. It comes up as the colour green.
7-14 is Basic. It comes up as the colour blue or purple..
Examples:
- On the scale, if the pH is 1, it is an extremely strong acid this will be deep red.
- If it is 6, it is an extremely weak acid this will be a yellowish green.
- if it is 8, it is an extremely weak base and its light blue.
- If it is a 14, it is an extremely strong alkaline and its dark purple.
Wiki User
∙ 7y agoA pH under 7 is acidic, a pH over 7 is basic and a pH=7 is neutral.
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The scale used to classify the strength of acid and basic solutions?
The pH scale.
What is the pH scale of a watermelon?
Watermelon has a pH of around 5.18 to 5.6. See Related Links.
A solution that is a 4 on the pH scale is a?
A solution which has a pH lower than 7 is a acid.
What is the name for a substance in the pH scale that is under 7?
It`s called acid(such as HCl,,,,PH=1)
What is the pH scale?
The pH scale represents the relative concentration of hydrogen ions in a solution. The concentration of hydrogen ions is commonly expressed in terms of the pH scale. Low pH corresponds to high hydrogen ion concentration and vice versa. A substance that when added to water increases the concentration of hydrogen ions (lowers the pH) is called an acid. A substance that reduces the concentration of hydrogen ions(raises the pH) is called a base. Finally some substances enable solutions to resist pH changes when an acid or base is added. Such substances are called buffers. Buffers are very important in helping organisms maintain a relatively constant pH. The pH scale is a scientific classification of how acidic or basic a substance is. The scale ranges form 0 to 14 -- a pH reading of 7 is neutral in nature , a pH less than 7 is acidic in nature and a pH greater than 7 is basic in nature.
What scale is used to determine pH?
the pH scale
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.
Where is a strawberry on the pH scale?
strawberries are at 3.5 on the pH scale
What colour is acid on a PH scale?
The Ph scale does not have colours.
What is phtwo?
it is science and it means pH scale
What scale measures the concentration of hydrogen ions?
The scale that chemists use to describe the concentration of hydronium ions in a solution is know as the pH Scale
What is the midpoint of the pH scale?
The midpoint of the pH scale is 7.
The scale used to classify the strength of acid and basic solutions?
The pH scale.
What is the scale used to indicate the strength of an acid or base called?
pH Scale
What substance is in ithe middle on a PH scale?
Pure water has a pH of 7.0 which is the center of the pH scale.
What is the neutral number in the pH scale?
7 is neutral on the pH scale.
What does a 7 on the pH scale indicate?
pH=7 is the neutral point on the scale.
