pH和可滴定酸度之间的差异| Compare the Difference Between Similar Terms

Thekey differencebetween pH and titratable acidity is that thepH measures the concentration of freeprotonsin a solution whereas titratable acidity measures the sum of free protons and un-dissociated acids in a solution.

Theacidityof a solution measures the ability of that solution to neutralize a base. This is because acids contain dissociable protons (H+ ions) and bases can release OH- ions. When the acid reacts with the base, the H+ ions and OH- ions react with each other to form water molecules (H2O). Hence, it is a neutralization reaction.

1.Overview and Key Difference
2.What is pH
3.What is Titratable Acidity
4.Side by Side Comparison – pH vs Titratable Acidity in Tabular Form
5.概括

What is pH?

The pH is a measurement of the concentration of free protons (H+ ions) in a solution. These protons are the H+ ions that dissociate from acids. Therefore, by measuring the pH of a solution, we can measure the acid strength of a solution. It means that we can measure the capability of that solution to neutralize a base. If a solution is acidic, the pH value is less than 7. But if the solution is alkaline, the pH of that solution is above 7.

Figure 01: pH Scale

我们将pH 7视为中性pH值。我们可以使用pH计测量溶液的pH值。使用游离质子浓度计算pH的方程如下；

pH = -log [H+]

What is Titratable Acidity?

Titratable acidity (TA) is a measure of the total acidity as an approximate value. It means that the titratable acidity gives the sum of free protons and un-dissociated acids in a solution. But, it is an approximation of total acidity because it cannot measure all the acidic species in the solution (total acidity is a more accurate measurement).

The unit of measurement of this parameter is grams per litre (g/L). Further, this acidity gives the total concentration of protons in a solution that can react with a strong base to neutralize the base. Ex: NaOH is a strong base which is commonly used in the measurement of TA.

What is the Difference Between pH and Titratable Acidity?

pH is a measure of the concentration of free protons (H+ ions) in a solution and this parameter is unit-less. Whereas, titratable acidity (TA) is a measure of the total acidity as an approximate value. The unit of measurement for this parameter is grams per litre (g/L). This is the main difference between pH and titratable acidity.

概括– pH vs Titratable Acidity

pH值和可滴定酸度是非常重要的参数eters in determining the soil quality using a soil solution. The difference between pH and titratable acidity is that the pH measures the concentration of free protons in a solution whereas the titratable acidity is a measure of the sum of free protons and un-dissociated acids in a solution.