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Why the dichromate mixture solution keep in dark prior to the titration?
Dichromate solutions are sensitive to light, as exposure can lead to photodecomposition and a change in concentration, which would affect the accuracy of titration results. Keeping the solution in the dark minimizes light exposure, preserving its stability and ensuring reliable measurements during the titration process. This practice helps maintain consistent chemical properties and enhances the precision of the titration outcome.
What is the need for an ammonical buffer solution in the determination of hardness of water by edta titration?
during the complexometric titration using edta it is very necessary to maintain the ph of the solution near about 10 so we use ammonium chloride buffer if we will not use this buffer dring the titration ph of sol. will ho lower side
Why it is necessary to cap the buret and minimize the CO 2 absorption from the NaOH solution. How will this affect your results?
When sodium hydroxide absorb carbon dioxide sodium carbonate is formed. But we need a defined mass (volume) of NaOH for a titration.
What happens when you forget to remove the air bubble from the tip of the buret that contains NaOH in a titration?
If you forget to remove the air bubble from the buret tip, it can affect the accuracy of the titration results. The air bubble can displace some of the liquid in the buret, leading to an incorrect volume measurement of the NaOH solution delivered. This can result in errors in the determination of the unknown concentration of the other solution being titrated.
Why doesn't adding water to a vinegar sample prior to titration affect the calculated molarity?
That is a question that confuses many. It is because the water is not acidic and therefore does not affect a colour change. You have a known volume of vinegar when starting the experiment.
How temperature affects titration experiments?
Temperature can affect titration experiments by influencing the rate of reaction. Higher temperatures can increase the rate of reaction, leading to faster titration results. Additionally, temperature can impact the solubility of the reactants, potentially affecting the concentration and accuracy of the titration. It is important to control and monitor the temperature during titration experiments to ensure reproducibility and accuracy of the results.
How does water affect titration?
Water can affect titration by diluting the analyte, potentially leading to inaccurate results. It can also impact the pH of the solution being titrated, affecting the equivalence point and the shape of the titration curve. It is important to take into consideration the amount of water present to ensure accurate and precise titration results.
Why does adding distilled water in the conical flask during titration not affect the titration result?
Adding distilled water in the conical flask during titration does not affect the titration result because the volume of the solution in the conical flask affects the concentration of the titrant solution. As long as the same volume of titrant is delivered from the burette and reacts with the analyte, the concentration of the titrant and the volume of the analyte solution will remain the same, ensuring accurate results.
Why is it poor technique to refill a buret during titration?
Refilling a buret during titration can lead to inaccurate measurements because it may introduce air bubbles or alter the concentration of the liquid being added. It can also affect the precision and reliability of the titration results by causing variations in the volume of liquid being delivered.
Why is it necessary to establish a blank titration before the reaction?
Establishing a blank titration allows you to account for any impurities or contaminants in the titration procedure or equipment, which could affect the accuracy of your results. By performing a blank titration, you can isolate the contribution of these factors and subtract them from your subsequent titration measurements to ensure the accuracy of your results.
What happened if some solution splashes out during the titration of NaOH?
If some solution splashes out during the titration of NaOH, it could result in a decrease in the volume of the solution being titrated. This can lead to an inaccurate reading of the amount of titrant used and affect the accuracy of the titration results. It is important to take precautions to prevent spills and maintain a consistent volume throughout the titration process.
Why should avoid the parallax error during titration ekperiment?
Parallax error should be avoided during titration experiments because it can lead to inaccurate volume readings. Parallax error occurs when the observer's eye is not directly in line with the measurement markings, causing a shift in perceived position. This can result in incorrect volume measurements and affect the precision and accuracy of the titration results.
Why the titration have to be carried out immediately after the addition of sulphuric acid?
Titration should be carried out immediately after the addition of sulfuric acid to prevent any chemical reactions or changes in the sample that could affect the accuracy of the titration results. Waiting could lead to altered concentration levels or other undesired reactions that could affect the titration process.
Why acid is added to iron ammonium solution before titration?
Acid is added to the iron ammonium solution to lower the pH and prevent the hydrolysis of iron ions, which can affect the accuracy of the titration results. Acid also helps dissolve any precipitates that may form during the titration process, ensuring a clear and accurate endpoint.
Why was it important to let the solution cool down before conducting the titration experiment?
It was important to let the solution cool down before conducting the titration experiment because temperature can affect the accuracy of the results. Cooling the solution helps to ensure that the reaction occurs at a consistent temperature, leading to more reliable and precise measurements during the titration process.
Why is the pH of the medium important in edta titration?
The pH of the medium is important in EDTA titration because the formation of the metal-EDTA complex depends on the pH. At certain pH levels, the metal-EDTA complex formation is optimized, leading to accurate results. Deviations from the optimal pH can affect the stability of the complex and lead to incorrect titration results.
What is titration error?
Titration error is simply the difference between the end point of a titration and the equivalence point of it. It can mathematically defined as Error = Vol(End Point) - Vol(Equivalence Point)
