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Paulo2014
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A titration in which 0.01 mol L NaOH is added to 10ml of ethanoic acid is carried out.
find the pH at the equvilence point
find the pH at the equvilence point
Titration is a technique used in chemistry to determine the concentration of an unknown solution by reacting it with a known solution. This process is commonly used to find the concentration of acids or bases in a solution.
In titration, a known solution is slowly added to an unknown solution until the reaction between the two is complete. The endpoint of the reaction is determined by using an indicator or by measuring the pH of the solution. From this, the concentration of the unknown solution can be calculated using the known concentration of the other solution.
Sodium hydroxide (NaOH) is a strong base that is commonly used in titration as the known solution. It reacts with the ethanoic acid in the unknown solution to determine its concentration.
The concentration of the NaOH solution is crucial in this titration because it is used to calculate the concentration of the unknown ethanoic acid solution. If the concentration of the NaOH solution is known, the concentration of the unknown solution can be determined using the volume and reaction stoichiometry.
The pH of the ethanoic acid solution will change as the NaOH solution is added. Initially, the pH will be acidic due to the presence of ethanoic acid. As the NaOH is added, it will react with the ethanoic acid and neutralize it, causing the pH to increase. At the endpoint of the titration, the pH will reach a neutral level (pH = 7) due to the complete reaction between the two solutions.