Question

provide the explanation for why your calculation is different from the true acid concentration

Answer 1

Titration is an analytical technique which is used to find the concentration which is not known of an analyte(which means the titrand) by reacting it with a known volume of a solution with known concentration known as the titrant. The titration methods are generally used for the Acid - base titrations.

Indicator is a substance which undergoes a observable change when the conditions in the solution change like color, temperature, precipitate formation, bubble formation or any other measurable quantity.

When the amount of titrant added completely neutalizes the analyte solution that point is called the equivalent point. It can be measured with the help of indicator.

Errors in the experiment of titrations:

There are different methods used to determine the equivalence point in a titration but the error is always there because of the following reasons.

• If a coloured indicator is used it is very difficult to detect the equivalence point considering the colour change and the equivalent point will go past the actual equivalence point and we will get more concentration then the actual one.
• Second is the use of water.if water is used to prepare the solutions, it will change the pH of the solution like if hard water is used to prepare the solution it contains the ions such as ca2+,Mg2+ which will make the solution alkaline unlike the deionized distilled water.