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The pH scale runs from 0 to 14. Pure water has a pH of 7, the half-way point of the pH scale. A pH between 0 and 7 indicates that a solution is acidic, and the lower the pH, the higher the acidity. A pH between 7 and 14 indicates that a substance is alkaline, and the higher the pH, the higher the strength of the alkali.
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∙ 16y ago
Wiki User
∙ 15y agoAcid substances have a pH in the range of 0 to 6.99, neutral substances have a pH of 7, and bases have a pH in the range 7.01 to 14 (almost all pH are from 0 to 14).
Wiki User
∙ 14y agoA base is defined as any chemical with a pH greater than 7. Acids have a pH less than 7. And pure water has a pH of exactly 7.
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∙ 12y agosubstances which have pH>7 are acidic.
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∙ 7y agoUltrapure water is neutral.
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∙ 15y agoan acid
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Why are acidic substances lower in pH value than basic substances?
because the substance is high on pH value because the substance is high on pH value
Which has the greater concentration of hydrogen ions a substance with a pH of 5 or a substance with a pH of 4?
A pH of 4 is one order of magnitude more acidic that a pH of 5. So. the 4 pH has the greater hydrogen ion concentration.
A substance with a pH of 11 is what times more what than a substance with a pH of 8?
A pH of 11 is 1000x more alkaline than a pH of 8. The pH scale is a logarithmic scale. This means that in a pH scale, a change of one whole number represents a tenfold change in the pH. So a pH of 8 is 10x more alkaline than a pH of 7.
What pH level does catechol oxidase work best a?
pH 10 and 12
What is alkalinity and its relation to the pH scale?
The pH scale is mostly in the range 0-14. A pH value of 7.0 means neutral. The lower the value, the more acidic the substance. The higher the value, the more alkaline. Note that, pH can be 15, just like it can be -1.
What is a substance which is pH 6?
Natural rainwater (pH 5 - 6) Milk (pH 6 - 6.6)
What common substance have a pH of 6?
me
A substance with a pH of 6 is called what?
an acid. one example of a pH 6 substance is urine.
What is the base of an acid?
There's no such thing as a base of an acid! A base is a substance with a pH of 8-14, and an acid is a base with a pH of 0-6. A neutral substance has a pH of 7.
If the ph of a substance is 11 then that substance is?
If a substance has a PH of 11 then the substance is basic.
What type of substance have a pH between 1 and 6?
Acids.
Is a substance with a pH of 6 an acid base or neutral?
a weak acid
If a substance tested 2 on the pH scale how many times more acidic than a substance that scored 6 on the pH scale?
pH is the power of 10, so 6-2=4 means 104 times stronger (10.000 times)
When measured on the pH scale acid is?
The pH scale ranges from 0-14. From 0-6, the substance is acidic. A value of 7 means the substance is neutral. From 8-14, the substance is basic.
What is the pH of a substance?
The pH is the negative log of the concentration of hydronium ions. (pH=-log [H3O+]) If the pH is high, the substance is basic. If it is low the substance is acidic. When the pH is exactly 7 the substance is neutral.
Which is the most acidic pH 2 pH 5 pH 7 or pH 11?
Most acidic is substance of pH of 2, then of pH of 5 and the substance of pH 7 is neutral and the substance of pH 11 is basic
If a substance has a pH of 6 is it a strong or werak acid?
Strong acids have pH values below 3 , so it is a weak acid.
