titratable acidity

Titratable Acidity,  also known as TA can be defined as an approximation of a solution’s overall acidity. It has been used for a long period during the production of wine. The unit of titratable acidity is usually taken as (g/L) which is gram per litre. However, it should be mentioned that the use of other formats of the measure is not random. People often get confused between titratable acidity and total acidity. However, there is a difference between the two. The measure of Total Acidity helps in accurately measuring the overall acid content within a solution whereas Titratable acidity is mostly used as it is an easier measure

Acid-Base Titration

Acid-base titration can be defined as a process that is mostly used for experimenting as well as acquiring information about a solution that contains both bases and acids. There are several organics as well as inorganic compounds present in nature. An individual can efficiently determine the basic or acidic properties of these solutions by using titration. Titration of a base is done with the help of acid and titration of acid is carried out with the help of a base. 

Indicators are specifically used in the case of titration to determine the endpoint of the experiment. Acid-base titrations are used for calculating the amount of the known base or known acid present in the solution The word titration was derived from the word titulus which is a Latin word. The word titulus means title or inscription. In other words, the title refers to rank in the French language. So the Titration means the determination of rank or concentration of a solution concerning water that has a PH level of 7. 

Acid-Base Titration Examples

It is of utmost importance that a person accurately measures the volume of different substances while doing titrations. Titration is generally carried out in an instrument named burette. A burette is a specific container that facilitates liquid dispensing thereby indicating the liquid volume precisely. In the following section, an Acid-Base titration Example has been provided. 

Example 1: A sample containing 1.2 g of the mixture (NaHCO3 + Na2CO3) is dissolved as well as titrated with an HCL solution having the normality of 0.5. When Phenolphthalein was used as an indicator, the endpoint was calculated to be at 15ml. However, over this when methyl orange was added, another endpoint at 22ml was obtained. Find the mixture’s percentage composition. 

Solution: To completely neutralise Na2CO3 solution a total of 30ml (15 +15) ml acid is needed. 

Overall required volume = 22 + 15 = 37ml.

Hence 7ml (37 – 30)  amount of acid is required for the neutralisation of NaHCO3. 

Hence, the percentage composition of Na2CO3 is [(0.053 x 30 x 0.5) ÷ 1.2] x 100 = 66.25 percent.

Therefore, the percentage composition of NaHCO3 is (100 x 0.042 x 7 x 0.5) ÷ 1.2 = 24.50 percent. 

Strong Acid strong base titration

A strong acid strong base titration is the simplest form of titration. This is because the process involves a strong base and strong acid which is completely dissociated when present in water. Hence, the overall results in the neutralisation reaction of the strong acid and strong base. The carry out the titration, a burette is needed. The burette is used to dispense a particularly strong acid into a container of strong base or vice versa. This is done to efficiently determine the equivalence point. 

In this context, the definition of a strong base is given as a base that is ionised when kept in an aqueous solution. This refers to the fact that when a strong base is kept in a solution like water, the entire quantity of the strong base is going to dissociate into its constituent ions. HCl is a well-known example of a strong acid.  On the contrary, an acid that is ionised completely in an aqueous solution is called a strong acid. This means that when the strong acid is kept in some solution like water, it will dissociate completely into its ions, unlike weak acids. NaOH is a well-known example of a strong base

Conclusion

The article has been carried out on the core topic of Titratable acidity. This measure is an approximation of the measure of Total acidity and is immensely important in the subject of Dairy Microbiology. The core topic has been properly discussed through the discussion of acid-base titration, Acid-Base titration examples, and Strong Acid strong base titration.