Calculating Molarity of NaOH in a Titration/pH Problem

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In summary, titration is a laboratory technique used to determine the concentration of a solution by reacting it with a known concentration of another solution. It is commonly used in chemistry and other fields, such as environmental testing and drug analysis. A pH indicator is used to determine the endpoint of the reaction, which is when the reactants have been completely neutralized and the concentration can be calculated. The concentration of a solution can be calculated using the formula: M1V1 = M2V2. Factors such as improper calibration, incorrect measurement, and human error can affect the accuracy of a titration. The endpoint is reached when the pH indicator changes color, and it is important to add the titrant carefully near the endpoint for accurate results.
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emc92
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When 22.63 mL of aqueous NaOH was added to 1.226 g of cyclohexylaminoethanesulfonic acid (FM 207.29, structure in the table) dissolved in 41.37 mL of water, the pH was 9.24. Calculate the molarity of the NaOH.

How do I start this calculation?
 
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  • #2
Most likely finding pKa in the table.

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FAQ: Calculating Molarity of NaOH in a Titration/pH Problem

What is titration and why is it used?

Titration is a laboratory technique used to determine the concentration of a solution by reacting it with a known concentration of another solution. It is commonly used in chemistry to find the concentration of acids and bases, and is also used in environmental testing and drug analysis.

What is the purpose of a pH indicator in titration?

A pH indicator is used in titration to determine the endpoint of the reaction. It changes color when the reaction is complete, indicating the point at which the reactants have been completely neutralized and the concentration can be calculated.

How do you calculate the concentration of a solution using titration?

The concentration of a solution can be calculated using the formula: M1V1 = M2V2, where M1 is the concentration of the known solution, V1 is the volume of the known solution used, M2 is the concentration of the unknown solution, and V2 is the volume of the unknown solution used.

What factors can affect the accuracy of a titration?

The accuracy of a titration can be affected by factors such as improper calibration of equipment, incorrect measurement of volumes, and human error. It is important to carefully follow the procedure and use precise measurement techniques to ensure accurate results.

How do you know when a titration is complete?

A titration is complete when the endpoint is reached, which is indicated by a color change in the pH indicator. It is important to add the titrant slowly and carefully near the endpoint to ensure accurate results.

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