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The definitive answer is 'pH = -log(10) [H^(+)]
In words, ' pH is the negative logarithm, to the base ten, of the hydrogen ion concentration.
As an example
If H^(+) is 0.002
Then
pH = -log(10)[0.002]
On the calculator using the 'log' button
pH = -(-2.69897...)
pH = 2.69897...
pH = 2.70
NB This would be an acidic pH
NNB pH is always quoted to 2 d.p. only.
NNNB Do NOT use the 'ln' button on a calculator.
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What are some common logarithmic scales?
The Decibal scale for sound measurement is an example of a logarithmic scale. The Richter scale, the pH scale, the magnitude scale for stars, the multiplicative scales on a slide rule
Formula for calculation pH and pOH?
pH + pOH =14
What is the formula for a cube?
S=ph+2b
What type of substance have a pH between 1 and 6?
Acids.
What are logarithms used for today?
Here are just a few modern uses for logarithms:The Saffir-Simpson Hurricane Scale, Richter Magnitude Scale, and pH scale are all based on logarithms.You see brightness on a logarithmic scale, so as light becomes constantly brighter, it starts having less relative affect on your vision.Musical notes are measured logarithmically, and the frets on a guitar grow closer together as the notes become higher in pitch.Engineering data is sometimes graphed on a logarithmic scale.
Give an example of logarithmic formula that give the pH of a substance?
pH=-log(H+)
How is pH scale applied to logarithmic equation?
The pH scale is a logarithmic scale used to express the acidity or basicity of a solution. The formula to calculate pH is pH = -log[H+], where [H+] is the hydrogen ion concentration in moles per liter. This logarithmic equation allows for a convenient way to represent a wide range of hydrogen ion concentrations in a compact form.
A substance with a pH of 11 is what times more what than a substance with a pH of 8?
A substance with a pH of 11 is 1000 times more basic than a substance with a pH of 8. This is because the pH scale is logarithmic, with each unit representing a tenfold difference in hydrogen ion concentration.
Which has the greater concentration of hydrogen ions a substance with a pH of 5 or a substance with a pH of 4?
A substance with a pH of 4 has a greater concentration of hydrogen ions compared to a substance with a pH of 5. The pH scale is logarithmic, so each decrease in pH by 1 represents a tenfold increase in hydrogen ion concentration.
How much stronger is pH 9 than ph4?
The strength of an acid or base is measured on a logarithmic scale, meaning a change of 1 pH unit represents a tenfold difference in acidity or basicity. Therefore, a substance with a pH of 9 is 1,000 times stronger in basicity than a substance with a pH of 4.
Difference between pH of 4 and pH of 10?
The pH scale is a logarithmic scale that measures acidity or alkalinity. A pH of 4 is considered acidic, while a pH of 10 is considered basic. The main difference between pH 4 and pH 10 is the concentration of hydrogen ions; pH 4 has a higher concentration of hydrogen ions compared to pH 10.
What is the pH of a sour tasting substance?
A sour tasting substance typically has a low pH, typically ranging from pH 1 to pH 4. This acidity is due to the presence of high concentrations of hydrogen ions in the substance, which gives it a sharp, tangy taste.
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. ;)
If solution a has a pH of 5 and solution b has 100 times the hydrogen ion concentration of solution A what is the pH of solution B?
The pH of solution b would be 3. This is because the pH scale is a logarithmic scale, so solution b would have a pH that is 2 units lower than solution a, since it has 100 times the hydrogen ion concentration.
What is pH of a substance that has a pOH of 4.8?
To find the pH from the pOH, you use the formula pH + pOH = 14. Therefore, if the pOH is 4.8, then the pH would be 9.2 (14 - 4.8 = 9.2).
What do you call a substance with a pH of 6?
Mildly acidic. Neutral is 7.0 on a scale of 0-14. The lower the pH the more acidic, and the higher the more basic. Your 6.0 is close to that of rainwater.Acids have a PH value of six (6) and lower.
How is each step on the pH scale different?
The pH scale is logarithmic; the difference between two units is x10.
