In volumetric analysis 75 ml of acid is diluted to 375ml. 50 ml of this diluted acid requires 40 ml of decinormal Sodium Hydroxide for complete neutralization . what is strength of acid ? please solve it anyone.
Answers
Answer:
To prepare a standard solution of sodium carbonate.
To determine the strength of a given solution of hydrochloric acid by titrating it against standard sodium carbonate solution.
The Theory
What is Titration?
One of the important methods in Quantitative Analysis is Volumetric Analysis, a commonly used laboratory technique. It is used to determine the unknown concentration of a sample by measuring its volume. This process is also called titration. In a titration, a solution of unknown concentration is reacted with a solution of known concentration. The solution taken in the burette is called the titrant and the solution taken in the conical flask is called the analyte.
What does the end point of a titration mean?
The endpoint of a titration is the point at which the reaction between the titrant and the analyte becomes complete. Generally the endpoint of a titration is determined using indicators.
What is a standard solution?
Answer:
Use the titration formula. If the titrant and analyte have a 1:1 mole ratio, the formula is molarity (M) of the acid x volume (V) of the acid = molarity (M) of the base x volume (V) of the base. (Molarity is the concentration of a solution expressed as the number of moles of solute per litre of solution.)
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