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Sagot :
The molarity of the HCl solution is 0.075M
Titration is a chemical process in which a solution which is of known concentration is used to identify the concentration of an unknown solution. Generally , the titrant whose concentration is known is added from a burette to a known amount of analyte which is the unknown solution and this unknown solution is taken in a beaker or a flask, until the reaction is complete. We also use some chemical indicators to identify the end point of the reaction.
Molarity (M) can be understood as the amount of a substance in a certain volume of solution. Molarity is defined as the number of moles of a solute per liters of the solution. Molarity can also be referred to as the molar concentration of a solution.
Formula to calculate molarity is
[tex]M_{1}V_{1}[/tex] = [tex]M_{2}V_{2}[/tex]
In the above given data [tex]M_{1}[/tex] = unknown, [tex]M_{2}[/tex] = 0.100M, [tex]V_{1}[/tex] = 20ml and [tex]V_{2}[/tex] = 15ml
So [tex]M_{1}[/tex] = 15×0.100 ⇒ 0.075M
20.0
Therefore the molarity of the HCl solution is 0.075M
To know more about Molarity
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