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The "p" means "potential" and the "OH" means "hydroxide". OH- is the hydroxide ion. In chemistry, pOH is the inverse log of the concentration of hydroxide in a solution:
pOH = -log [OH-]
To better understand, think of the more common term pH. pH gives a measure of the concentration of hydrogen in a solution.
pH = -log [H+]
If the pH is less than 7, the solution is basic. If it is more than 7, the solution is acidic. The scale runs from 0 to 14.
If the pH is 7 exactly, the solution is neutral. Distilled water has a pH of 7. And what is water? H+ and OH-! Therefore, if the pH is 7, there are equal amounts of hydrogen and hydroxide, or pure water.
An easy way to calculate pOH is to find the pH and subtract that from 14 (the top of the pH scale). Basically, pH + pOH = 14. So an easy way to find pOH is:
pOH = 14-pH
What else can I help you with?
What is the pOH range of bases?
An acidic solution will have a pOH ranging from 7 to 14
The sum of pH plus pOH?
The sum of pH and pOH is always equal to 14 in a neutral solution at 25°C. This is because pH is a measure of the concentration of H+ ions in a solution while pOH is a measure of the concentration of OH- ions. In a neutral solution, the concentration of H+ ions is equal to the concentration of OH- ions, resulting in a sum of 14.
Is POH organic?
POH stands for "Proof of History," which is a mechanism used in blockchain technology to verify and record the historical data of transactions or events. It is a digital concept and not related to organic products or materials.
What is the pOH equation How can pOH be determined from pH?
pH + pOH =14
What is the pOH of a solution that has a POH OF 3?
3
How does the POH scale form PH scale?
pH + pOH = 14 pH is a measure of the hydrogen ion concentration, [H+] pOH is a measure of the hydroxide ion concentration, [OH-] pH = -log10[H+] pOH = -log10[OH-]
If pH equals 4 what is the poh?
The pOH is 6,4.
What is the pOH range of bases?
An acidic solution will have a pOH ranging from 7 to 14
The sum of pH plus pOH?
The sum of pH and pOH is always equal to 14 in a neutral solution at 25°C. This is because pH is a measure of the concentration of H+ ions in a solution while pOH is a measure of the concentration of OH- ions. In a neutral solution, the concentration of H+ ions is equal to the concentration of OH- ions, resulting in a sum of 14.
Is POH organic?
POH stands for "Proof of History," which is a mechanism used in blockchain technology to verify and record the historical data of transactions or events. It is a digital concept and not related to organic products or materials.
What is the solution's pH and pOH?
pH and pOH are a measure of the concentration of the hydronium ions and hydroxyl ions respectively in the solution. pH = -log[H+] pOH = -log[OH-] and they are related: pH + pOH = 14
Can bases be measure on a pH scale?
Yes it is possible. For bases the pH values generally range over 7 to 14. Alternatively pOH can be used, where pH + pOH = 14.
What is the pOH equation How can pOH be determined from pH?
pH + pOH =14
If the pH of a solution is 10.7, what would the pOH be?
The pOH is 6,4.
How does the pOH differ from pH?
pOH happens to be the negative log of hydroxide ion' s concentration while pH is the negative log of hydrogen ion's concentration. pH is used to measure the acidity or alkalinity of a solution.
What is the pOH of an acid that has pH of 2?
It will have a pOH of 12. Because pH+pOH=14
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.
